CORE TECHNOLOGIES PENNSYLVANIA INC
10-K, 1998-07-23
ELECTRICAL APPARATUS & EQUIPMENT, WIRING SUPPLIES
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<PAGE>

                       Securities and Exchange Commission
                              Washington, DC 20549

                                    FORM 10-K

                  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 1997    Commission File Number 000-17577
- -------------------------------------------                           ---------

                     CORE TECHNOLOGIES (PENNSYLVANIA), INC.
- --------------------------------------------------------------------------------
             (Exact name of Registrant as specified in its charter)


        Delaware                                                22-2537194
- -----------------------------                            ----------------------
or other jurisdiction of                                    (I.R.S. Employer
incorporation or organization)                           Identification Number)


110 Summit Drive, Exton, PA                                     19341
- ---------------------------------------                        ----------
(Address of principal executive officer)                       (Zip Code)

Registrant's telephone number, including area
code:                                                        (610) 524-7000
                                                             --------------

Securities registered pursuant to Section 12(b) of the Act:

                                                        Name of  each exchange
  Title of Each Class                                    on which registered
  -------------------                                    -------------------

        None                                                    None


Securities registered pursuant to Section 12(g) of the Act:


                          Common Stock, $ .01 par value
                          -----------------------------
                                (Title of Class)

Indicate by check mark whether the Registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the Registrant was
required to file such report(s)) and (2) has been subject to such filing
requirements for the past 90 days.

                       Yes            No        X
                           ------            ------

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of Registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of the Form 10-K or any amendment to this
Form 10-K. [ ]

<PAGE>

Aggregate market value of voting stock held by non-affiliates (based on the
average of the bid and asked prices as quoted on the NASD's Electronic Bulletin
Board on June 24, 1998) was approximately $1,068,716. For purposes of
determining this amount only, Registrant has defined affiliates as including (a)
the executive officers named in Part III of this 10-K report, (b) all directors
of Registrant, and (c) each stockholder that has informed Registrant by June 24,
1998 that it is the beneficial owner of 10% or more of the outstanding Common
Stock of Registrant.

Indicate the number of shares outstanding of each of the Registrant's classes of
common stock as of June 24, 1998:

                  Common Stock:      8,887,326 Shares

DOCUMENTS INCORPORATED BY REFERENCE

No documents are incorporated by reference in this Form 10-K.


<PAGE>


                                     PART I
                                     ------

Item 1(a).        General Development of the Business
- ----------        -----------------------------------

         Prior to 1993, Core Technologies (Pennsylvania), Inc. (formerly
CenterCore, Inc., the "Company") was engaged solely in the business of
designing, manufacturing and distributing modular workstation systems and a line
of complementary office products, including air management systems for
temperature blending and breathing zone filtration. In February 1993, the
Company, through a subsidiary, acquired the assets and assumed the liabilities
of Airo Clean Engineering, Inc. ("Airo Clean"), a designer and manufacturer of
cleanroom and air filtration components and systems serving industry and the
hospital and health care markets. In September 1993, the Company, through a
subsidiary, purchased substantially all of the assets and assumed certain
liabilities of Maris Equipment Company ("Maris"), a specialty contractor
providing integration, installation and servicing of advanced electronic systems
for security access control, fire alarm, sound, communications and other
applications on a nationwide basis. These acquisitions were part of the
Company's overall strategy to improve the Company's operating performance by
penetrating new and growing markets to compensate for the government spending
decline in the market of the Company's furnishings segment.

         In the third quarter of 1995, the Company sold all of the assets
relating to its furnishings business (including the name "CenterCore") to a
corporation unaffiliated with the Company and its principals. Subsequent to the
transaction, the Company changed its corporate name to Core Technologies
(Pennsylvania), Inc. In addition to other consideration in the sale, the Company
received a subordinated note for $2 million which commenced amortization on
February 27, 1997 on a seven-year-level schedule with semi-annual payments and a
balloon payment due on August 25, 2000.

         The Company's financial restructuring in 1995 also included the
contribution to the capital of the Company of 2,000,000 shares of the Company's
common stock by Safeguard Scientifics (Delaware), Inc. ("Safeguard"), previously
the Company's majority shareholder. Safeguard simultaneously sold an aggregate
2,500,000 shares of the Company's common stock to officers of the Company. See
Item 13.

         In 1995, the Company significantly downsized Maris' operations because
of the Company's lack of adequate capital to support those operations. In late
1997, the Company's board of directors decided that it was in the Company's best
interest to sell Maris' assets and permit the Company to concentrate on Airo
Clean's expanding business. On June 8, 1998 substantially all of the assets of
Maris were sold to Security Technology Group, Inc. a privately-held New Jersey
corporation (the "Buyer" or "STG") in a transaction which was effective as of
June 1, 1998. The purchase price consisted of a fixed payment of $1,100,000 paid
at closing, an amount based upon the excess of Maris' assets over its accounts
payable and liabilities assumed ("asset amount"), and contingent payments of up
to $500,000 based upon the performance of Maris' business for the calendar year
ending December 31, 1998. Based upon a closing balance sheet prepared by the
Company and delivered to STG subsequent to closing, the Company has determined
the asset amount, adjusted by certain closing adjustments, to be approximately
$1,827,000. Approximately $2,033,000 (including the fixed price and the asset
amount) was paid to the Company in cash at Closing based on an estimated closing
balance sheet and estimated closing adjustments. $750,000 of the asset amount
was retained by STG as a deferred payment, which is subject to certain
conditions described below. Approximately $144,000 was paid to the Company on
July 20, 1998 based on the final closing balance sheet and final closing
adjustments delivered by the Company.

         In connection with the sale of Maris, the Company is entitled to a
contingent payment of $200,000 if Maris gross revenues exceed $13,500,000 in
1998. A proportionate amount between zero and $200,000 will be paid if gross
revenues exceed $11,500,000 but are less than $13,500,000. The Company

<PAGE>

is also entitled to a contingent payment of $200,000 if Maris' gross margins
exceed 24% in 1998. A proportionate amount of $200,000 will be paid if gross
margins are between 22% and 24%. The Company is also entitled to a contingent
payment of $100,000 if Maris' 1998 bookings exceed $13,500,000. A proportionate
amount of $100,000 will be paid if bookings exceed $12,500,000 but are less than
$13,500,000.

         The deferred payment and contingent payments will be paid as follows.
The Buyer was assigned approximately $3,335,000 of Maris' accounts receivable.
When all but $750,000 of these accounts receivable have been collected by STG,
the next $250,000 of these accounts receivable collected by STG will be paid to
the Company to reduce the deferred payment. On or about January 15, 1999, STG
will prepare an estimate of the contingent payments due to the Company. If the
Company is due any contingent payment based upon the Buyer's estimate, the Buyer
will pay from the remaining amount of the deferred payment an amount which will
reduce the aggregate of the deferred payment and contingent payments to
$500,000. On March 31, 1999 the Buyer will decide whether to continue to pay the
balance of the deferred payments from collections of accounts receivable
assigned by Maris as and when collected, or to pay the difference between the
remaining amount of the deferred payment and the amount of the accounts
receivable and reassign the accounts receivable to the Company.

         Under an interim services agreement executed by the Company and STG,
the Company is required to provide STG with use of a portion of the Company's
headquarters facility in Exton, Pennsylvania, the right to use telephone and
other equipment and facilities at that location and general support services at
that location. The Company is also required to provide transitional accounting,
management and financial services to STG, including the services of the
Company's President and its Chief Financial Officer. STG will pay the Company
approximately $8,000 per month for use of the space and is paying approximately
$1,000 per month for the other services. STG and the Company are both obligated
to the arrangement for the space through April 30, 1999. STG may terminate the
arrangement for accounting, management and financial services at any time upon
fifteen days notice.

         The Company's operations now consist of Airo Clean's indoor air quality
and hospital/healthcare environmental control business.

Item 1(b).        Financial Information about Industry Segments
- ----------        ---------------------------------------------

         Due to the sale of Maris' security and control systems business, the
Company's consolidated financial statements have been restated to present the
results of the air filtration business as the consolidated results of
operations, and to show results from the security and control systems business
as discontinued operations. The Company's operations are now in one industry
segment. See Note 2 to the consolidated financial statements.

Item 1(c).        Narrative Description of Business
- ----------        ---------------------------------

         The Company's continuing operations consist of Airo Clean's business,
described below.

AIR FILTRATION PRODUCTS
- -----------------------

Products
- --------

         The Company designs, manufactures and distributes through its wholly
owned subsidiary, Airo Clean, Inc. ("Airo-Clean"), air-filtration components and
systems which are used in a variety of industries which require particle-free,
ultra-clean working environments, as well as patient isolation devices for
hospital and health care applications.

                                       2
<PAGE>

         The two room-size cleanroom systems manufactured and distributed by the
Company are the UDF Perforated Ceiling System and the UltraGuard(R) HEPA/Fan
Module Ceiling System, both of which can be delivered prepackaged using standard
components or can be custom designed to meet precise client specifications. The
UDF Perforated Ceiling System provides mass-air displacement for a more uniform
distribution of clean air throughout a cleanroom environment and other
critically controlled areas. The UltraGuard HEPA/Fan Module Ceiling System is a
pressurized plenum system which utilizes a self-powered blower and HEPA filter
packaged together in one compact housing which can be installed in a suspended
ceiling grid.

         The Company also manufactures and distributes several application
specific, modular cleanroom systems which are available in a number of
prepackaged sizes or can be customized to meet special requirements:

         o The BioShield(TM) air-filtration unit, a health care product, is an
air scrubbing product for controlling airborne pathogens. The product is
targeted for the health care industry. The BioShield product meets or exceeds
the Center for Disease Control guidelines for hospital isolation rooms, which
require a minimum of 6 air changes per hour.

         o The Microlab(R) portable cleanroom can be set up by one person and be
operational within 30 minutes to provide Class 100 air for sanitized operations
such as animal studies, health care, hybrid electronics, and medical device
assembly. The Microlab unit's compact design fits through standard 36" doorways,
can be expanded by linking multiple units together where additional space is
required, and can be quickly moved to another location or folded and stored
until needed again.

         o The CleanStation(R) single-pass softwall cleanroom is available in 15
sizes for Class 100, 1,000 or 10,000 air requirements and is designed for
customers with limited budgets requiring fast delivery and quick setup using
standard tools. The Flexi-Jet(TM) system is an economical solution that supplies
HEPA-filtered Class 100 air to a large area for industrial and institutional
applications that require minimal dust and other airborne contaminants. The
BioLock(R) is a portable, transparent clean air isolation enclosure used for
temporary isolation needs. The PureZone(TM) product is specifically targeted to
the commercial market and can be wall-mounted or retrofitted on existing
furniture systems.

         o The Company's Laminar Air Flow Patient Isolation technology is a
necessary component for bone marrow transplant procedures. The products consist
of modular components which can be managed in varied configurations to create a
room environment providing patient isolation. The evolution in design
refinements stems from more than a quarter million patient hours of experience.
The Company assembles the components at its Exton facility and the product is
then disassembled and reconstructed in the on-site hospital settings. The room
air is HEPA-filtered continually to provide maximum levels of cleanliness for
the patient.

Patents and Proprietary Rights
- ------------------------------

         The Company has a number of patents, patent applications, patent
licenses and trademarks with respect to various air-filtration products. The
Company's issued patents and patent licenses expire between 2008 and 2011. The
Company believes that these patents and trademarks help differentiate the
Company's product offerings, but price and flexibility of product offerings are
equally important competitive factors.

                                       3
<PAGE>

Marketing and Distribution
- --------------------------

         The Company primarily conducts its sales and marketing activities for
its cleanroom and other indoor air quality products from its Airo Clean facility
located in Exton, Pennsylvania. The Company markets and sells these products to
a wide variety of end-users throughout the United States through a network of
independent dealers and manufacturers' representatives. Some of the dealers have
exclusive rights to sell the Company's air-filtration products to specific
markets in a defined territory. Therefore, a territory servicing different
markets may have more than one dealer. These dealers are paid commissions for
product sales. Customers of cleanroom products include a variety of
manufacturing operations, including biomedical, microelectronics, medical
devices, pharmaceuticals, and the hospital and health care markets.

         The Company has formed strategic alliances with a major contractor and
several distributors to install large cleanroom projects and distribute its fan
filter units. These relationships were made to increase Airo Clean's capability
to participate in large turn key projects and enable the Company to broaden the
availability of its complete line of fan filter units. These offerings range
from a basic economy model to the more sophisticated roomside accessible energy
saver products.

         The Company's marketing activities seek to demonstrate the unique
applications and quality of its products. These activities include distribution
of sales literature, on-site demonstrations, direct mail programs, advertising,
publication of articles in the trade press and participation in industry
conferences and trade shows.

         Airo Clean's marketing efforts have been targeted primarily to
end-users and facility managers for use in manufacturing applications. However,
the Company anticipates expanding the marketing efforts for its air cleansing
devices to satisfy the increased demand for the prevention of infectious
contaminants in hospitals and for a variety of industrial applications.

Research and Development
- ------------------------

         The Company plans to focus its product development activities on
completing the System V monitoring and controlling system, along with a number
of modifications that are intended to increase the versatility of the Company's
products.

Manufacturing
- -------------

         The Company's cleanrooms and indoor air quality products are
manufactured in Exton, Pennsylvania. This manufacturing operation consists
primarily of an assembly process and testing of finished products.

Raw materials and Supplies
- --------------------------

         The Company's air-filtration products include specific filters, blowers
and electronic components that are assembled with steel or aluminum assemblies
and cabinets which constitute the majority of the products. Some of these items
are custom made for the Company and require coordination from qualified vendors
to assure availability of various electronic and metal assemblies. If any
supplier should terminate its relationship for any reason, the Company
anticipates that it will be able to develop, or obtain from other sources,
substitute components without sustaining any material adverse effects.

                                       4
<PAGE>

Backlog
- -------

         The backlog for the air quality segment was approximately $1.1 million
at December 31, 1997, compared to approximately $.8 million at December 31,
1996. The Company anticipates that this backlog will be fulfilled in 1998.

         Backlog primarily represents firm accepted orders for air-filtration
products. Although orders included in backlog may be canceled or rescheduled by
the customer, cancellations are uncommon and cancellation or restocking charges
may apply to a canceled order.

Seasonality
- -----------

         The air quality segment of the business is not seasonal.

Competition
- -----------

         The Company competes primarily in the hospital and health care segment
and the small to mid-size commercial and industrial applications segment of the
market for indoor air quality products. The Company's products are based on high
efficiency filtration systems, and are targeted at markets with strict air
purity requirements. There are a wide variety of companies providing services
similar to Airo Clean, and the market is very competitive. Competition is based
on price, ability of the products to satisfy specified air purity standards,
ability to customize products to meet specific customer needs, and reputation.
Management believes that the excellent long term reputation of Airo Clean and
its ability to provide customized solutions, combined with the growing number of
applications requiring air particle control, places the Company in a good
position to grow with the market and potentially improve its market share.

U.S. Government Sales and Dependence on Significant Customers
- -------------------------------------------------------------

         Airo Clean does not sell any material amount of products to the U.S.
government. One customer accounted for 11% of revenues in 1997. The Company does
not anticipate that any customer will account for 10% or more of revenues in
1998. Airo Clean has one distributor located in Singapore which sells products
in China and Southeast Asia who accounted for approximately 9% of revenue in
1997. The loss of this distributor could have a material adverse effect on Airo
Clean's business. The financial crises occurring in east Asia is having and will
continue to have a significant negative impact on the Company's sales through
this distributor for the foreseeable future.

EMPLOYEES
- ---------

         As of June 9, 1998, the Company had seventeen (17) employees engaged in
its continuing operations. None of the Company's employees is represented by a
labor union. The Company considers its employee relations to be good and has
never experienced any work stoppages.

Item 1(d)  Financial Information About Foreign and Domestic Operations and
- ---------  ---------------------------------------------------------------
Export Sales
- ------------

         The Company had approximately $1,411,000 of export sales in 1997 and
approximately $1,110,000 in 1996. Approximately $476,000 of export sales in 1997
and approximately $760,000 of export sales in 1996 were through the Company's
distributor in Singapore. These sales are U.S. dollar-denominated. The financial
crises in east Asia is expected to have a significant negative impact on sales
by this distributor for the foreseeable future.

                                       5
<PAGE>

Item 1(e).        Directors and Executive Officers of Registrant
- ----------        ----------------------------------------------

         Information about the Company's executive officers and directors can be
found in Part III of this report under "Item 10. Directors and Executive
Officers of Registrant."

Item 2            Properties
- ------            ----------

         The Company's continuing operations are conducted primarily at its
facility in Exton, Pennsylvania, where its executive offices are located. This
facility occupies approximately 21,580 square feet of space. Pursuant to a three
year lease, commencing April 1, 1996 the Company pays a monthly rental of
$12,588 and a monthly operating expense allowance of $4,784, which expense
allowance is subject to adjustment. The Company is providing the buyer of the
Company's former security systems business with the use of a portion of the
facility through April, 1999 for a payment of approximately $11,000 per month.
See Item 1(a) above. The Company believes that this facility will be adequate
for its present and anticipated purposes.

Item 3.           Legal Proceedings
- -------           -----------------

         Maris is a named party to certain pending law suits relating to certain
of Maris' security system installation projects. In connection with Maris' 1995
settlement with its surety companies, the surety companies have assumed all
liabilities and all claims and counterclaims in respect of these law suits, and
the surety companies have agreed to release Maris from its indemnity obligations
to them.

         The Company and its subsidiaries are involved in various claims and
legal actions arising in the ordinary course of business. In the opinion of
management, the ultimate disposition of these matters will not have a material
adverse effect on the Company's results of operations, liquidity, or
consolidated financial position.

Item 4.           Submission of Matters to a Vote of Security Holders
- -------           ---------------------------------------------------

         No matters were submitted to a vote of the Company's security holders
during the fourth quarter of 1997.

                                     PART II

Item 5.  Market for the Registrant's Common Stock and Related
- -------  ----------------------------------------------------
Stockholder Matters
- -------------------

         As of May 4, 1995, the Company's common stock was delisted from the
NASDAQ small-cap market. Since that date, there has been no established public
trading market for the common stock. The Company's common stock continues to be
quoted by a limited number of market makers on the NASD Electronic Bulletin
Board under the symbol "CCOR." There can be no assurance that there will be
regularly available quotations from market makers in the Company's common stock
in the future. The following are the high and low bid quotations for the
Company's common stock as quoted on the Electronic Bulletin Board for 1996 and
1997.

                               1997                      1996
                         Low        High           Low           High
                         ---        ----           ---           ----
First Quarter           $.13       $.22           $.19           $.34
Second  Quarter          .16        .19            .28            .69
Third Quarter            .13        .17            .38            .53
Fourth Quarter           .11        .17            .16            .25

                                       6
<PAGE>

                  The above bid quotations reflect inter-dealer prices without
mark-ups, mark-downs or commissions and may not necessarily represent actual
transactions.

                  There were 271 record holders of the Company's Common Stock on
June 24, 1998. The Company has historically reinvested any earnings in the
growth of the business and has not paid cash dividends on its common stock. The
Company's ability to pay dividends is restricted under the agreement with its
primary lender. In addition, the Company may not pay dividends on its common
stock until all accrued and unpaid dividends on its Series A Redeemable
Convertible Preferred Stock have been paid. As of December 31, unpaid and
accumulated dividends on the preferred stock as of December 31, 1997, were
$315,000.









                                       7

<PAGE>

Item 6.           Selected Financial Data
- -------           -----------------------
<TABLE>
<CAPTION>

<S>                                        <C>             <C>             <C>             <C>            <C>
In thousands, except per share              1997            1996            1995            1994           1993
amounts
- ----------------------------------------------------------------------------------------------------------------
Net sales                                  $5,121          $7,355          $4,676          $4,067         $2,727
- ----------------------------------------------------------------------------------------------------------------
Net earnings (loss)
- ----------------------------------------------------------------------------------------------------------------
    Continuing operations                   (398)             390             166            (74)          (252)
- ----------------------------------------------------------------------------------------------------------------
    Discontinued operations               (1,246)          (1,491)           (114)        (12,063)         (564)
- ----------------------------------------------------------------------------------------------------------------
    Disposition of
    discontinued operations                   --              650             100          (3,303)           --
                                            ----             ----            ----          ------          ----
- ----------------------------------------------------------------------------------------------------------------
    Net earnings (loss)                  ($1,664)        ($  452)          $  152       ($15,440)        ($ 816)
- ----------------------------------------------------------------------------------------------------------------
Diluted Earnings (loss) per
share
- ----------------------------------------------------------------------------------------------------------------
    Continuing operations                  ($.05)            $.03            $.01          ($.01)         ($.02)
- ----------------------------------------------------------------------------------------------------------------
    Discontinued operations                 (.14)           (.14)           (.01)          (1.16)         ( .06)
- ----------------------------------------------------------------------------------------------------------------
    Disposition of
    discontinued operations                   --              .06            .01           ( .31)            --
                                            ----             ----           ----          ------           ----
- ----------------------------------------------------------------------------------------------------------------
    Net earnings (loss)                    ($.19)          ($.05)          $  .01         ($1.48)         ($.08)
- ----------------------------------------------------------------------------------------------------------------
Working capital (deficit)                  $  819          $  363          $  749       ($ 6,858)        $ 1,480
- ----------------------------------------------------------------------------------------------------------------
Total assets                                4,180           5,226           5,718           7,707         16,497
- ----------------------------------------------------------------------------------------------------------------
Long-term Debt                              6,870           5,840           5,744             -0-          9,939
- ----------------------------------------------------------------------------------------------------------------
Redeemable convertible
    preferred stock                         1,815           1,725           1,635           1,545             --
- ----------------------------------------------------------------------------------------------------------------
Stockholders' equity
(deficit)                                ($6,640)        ($4,906)        ($4,354)        ($4,470)        $10,236
- ----------------------------------------------------------------------------------------------------------------
</TABLE>

The above table has been restated for discontinued operations, which include the
security systems and furnishings segment. No cash dividends have been declared
on common stock.

                                       8
<PAGE>

Item 7.   Management's Discussion and Analysis of Financial Condition and
- -------   ---------------------------------------------------------------
Results of Operations
- ---------------------

         The following information should be read in connection with information
contained in the Consolidated Financial Statements and notes thereto appearing
elsewhere in this Report. The following discussion includes forward-looking
statements that involve risk and uncertainties and are subject to change at any
time. The Company derives its forward-looking statements from its operating
budgets, estimates and forecasts, which are based upon detailed assumptions
regarding business and operational variables. While the Company believes that
its assumptions are reasonable, it cautions that there are inherent difficulties
in predicting the impact of certain factors, including competition, client
demand, and a dependence on a variety of industries which require particle-free,
ultra-clean working environments. The same comments, as to reasonableness of
assumptions, would apply to the demand from the hospital and healthcare market,
although HMO's as well as other revenue factors have had a demonstrable impact
on hospital spending.

Overview
- --------

         In late 1997, the Company and its Board of Directors adopted a formal
plan to sell the assets of Maris, its security and control system integration
and installation business, and classify Maris as a discontinued operation. On
June 8, 1998, effective June 1, 1998, substantially all of the assets of Maris
were sold to Security Technologies Group, Inc., a privately held New Jersey
corporation (STG). The decision to sell Maris was based on the Company's lack of
adequate capital to support Maris' operations. The transaction is more fully
described in note 2 to the Consolidated Financial Statements. The Company will
now focus on the indoor air quality and hospital/healthcare environmental
control business of its only operating subsidiary Airo Clean, Inc.

         Until 1995, the majority of the Company's operations were in the
business of designing, manufacturing and distributing space-efficient, modular
workstation systems and a line of complimentary office products. Due to
declining furniture sales, particularly to the Federal Government, the Company
decided in 1994 to dispose of the furnishings segment. On August 25, 1995, the
Company completed the sale of the assets of the domestic furnishings segment,
for cash and notes receivable. The Company applied the proceeds from the sale to
pay down bank debt. The Canadian operation was sold to Safeguard Scientifics,
Inc. in April 1995. Accordingly, the furnishings segment was presented as
discontinued operation in 1994 and prior years financial statements.

         In September 1995, Safeguard Scientifics (Delaware), Inc. contributed
to the capital of the Company 2,000,000 shares of the Company's Common Stock and
sold 2,500,000 shares of Common Stock to management. Prior to the above
transactions, Safeguard was the beneficial owner of 67% of the Company's
outstanding Common stock. Subsequent to the above transactions, Safeguard became
the beneficial owner of 36% of the Company's outstanding Common Stock. The above
information regarding Safeguard's beneficial ownership of the common stock
assumes conversion of the 15,000 shares of the Company's Convertible Preferred
Stock which are convertible by Safeguard into 1,500,000 shares of Common Stock.

         Continuing operations reflect the results of the on-going business of
Airo Clean only.

                                       9
<PAGE>

Review of continuing operations
- -------------------------------

         Net sales were $5.1 million in 1997, $7.4 million in 1996 and $4.7
million in 1995. The Company reported a net loss from continuing operations of
$397,900 in 1997 and net earnings of $645,600 in 1996 and $525,600 in 1995.
Gross margins, as a percentage of sales, were 23.0% in 1997, 34.0% in 1996 and
29.9% in 1995. The reduction in gross margin in 1997 reflects the increased
competition and pricing pressures in the filter-fan business throughout the
worldwide market. Airo Clean's 1996 net sales and gross margin reflect a $2.9
million clean room project that favorably impacted the 1996 gross margin by 4%.

         The sales effort at Airo Clean continues to focus on promoting the
BioShield, Ultraguard, and laminar air flow products. These are air scrubbing
devices for controlling airborne contaminants and are targeted for the micro
electronic and specialty manufacturing. They also provide needed particle
control in the health care and hospital industry. In 1995, Airo Clean acquired
the laminar air flow patient product line from Isolation Technology Systems, a
provider of sterile cleanroom products to the health care and hospital
industries. Laminar airflow patient isolation is a necessary component of bone
marrow transplant procedures, and Airo Clean uses this product line to enhance
its offering to the hospital and health care markets.

         Sales and marketing expenses were $734,900 in 1997, $694,900 in 1996
and $506,700 in 1995. These costs, as a percentage of sales, were 14.4%, 9.5%
and 10.8% in 1997, 1996 and 1995, respectively. These costs increased in 1997
due to the expansion of Airo Clean's sales distribution to a national level.

         General and administrative expenses were $924,300 in 1997, $1,040,700
in 1996 and $539,800 in 1995. These costs, as a percentage of sales, were 18.1%
in 1997, 14.2% in 1996 and 11.5% in 1995. The absolute dollar decrease of
$116,400 in 1997 from 1996 reflects staff reductions and salary freezes. The
increased costs as a percentage of sales in 1997 and 1996 reflect general
corporate expenses, which in 1995 were allocated to the discontinued furniture
operations. The Company continues to closely monitor and control costs and
believes that additional sales can be achieved without a proportional increase
in business infrastructure.

         Interest expense was $89,200 in 1997, $46,900 in 1996 and $45,600 in
1995. The increase in 1997 reflects the higher average debt level due to
operating losses incurred in 1997. In 1998 continuing operations will incur all
interest expense from the date of sale of the security systems segment in June
1998. Interest expense for the continuing operations is projected to be
approximately $440,000 for the year ended December 31, 1998.

         The income tax benefit in 1997 of $20,200 reflects the Company's
revised estimate of state income taxes payable. The Company's effective income
tax rate for continuing operations in 1996 and 1995 was approximately 45
percent. In addition, the Company has generated an operating loss carryforward
of approximately $12 million that may be used in future years to offset taxable
income until the year 2012, as more fully described in note ten to the
Consolidated Financial Statements.

         The approximate backlog as of December 31, 1997, 1996 and 1995 was $1.1
million, $.8 million and $2.4 million, respectively. The backlog at the end of
1995 included a $2.0 million clean room project that was completed in 1996.

                                       10
<PAGE>

Review of discontinued operations
- ---------------------------------

         In 1997 the Company and its Board of Directors adopted a formal plan to
sell the assets of Maris and therefore Maris is classified as a discontinued
operation. The following summarizes the Maris operations for 1997, 1996 and
1995: <TABLE> <CAPTION>
                                                                 1997                     1996                     1995
                                                                 ----                     ----                     ----
<S>                                                         <C>                      <C>                      <C>
Revenues                                                    $ 10,550,900             $ 10,362,900             $ 12,987,100
Cost of goods sold                                             8,314,000                9,053,200                9,982,100
                                                            ------------             ------------             ------------
    Gross profit                                               2,236,900                1,309,700                3,005,000
Expenses
    Sales and marketing                                        1,183,100                1,106,700                1,175,000
    General and administrative                                 1,358,900                1,427,600                1,657,500
    Reserve for losses on discontinued operation                 358,000
    Interest                                                     583,300                  522,800                  646,500
    Tax benefit                                                                          (256,000)                (359,700)
                                                            ------------             ------------             ------------
                                                               3,483,300                2,801,100                3,119,300
                                                            ============             ============             ============
Loss from discontinued operation                            $ (1,246,400)            $ (1,491,400)            $   (114,300)
                                                            ============             ============             ============
</TABLE>

         The Company reported a loss from discontinued operations from its
security systems segment of $1.2 million in 1997, $1.5 million in 1996 and
$114,300 in 1995, primarily related to higher than expected costs to complete
certain highway monitoring projects. The Company recorded $650,000 and $100,000
in gains on disposition of discontinued furnishings operations in 1996 and 1995,
respectively, primarily related to certain amounts received in excess of
anticipated amounts at the date of disposition.

                                       11
<PAGE>

Liquidity and Capital Resources
- -------------------------------

         In March 1997, the Company terminated its credit facility with its
previous lender and successfully negotiated a new credit agreement with its new
lender which provides a $6.0 million credit facility due on March 14, 2000. All
amounts due under the Company's previous credit facility were repaid with
amounts from the new facility. This credit facility is secured by guarantees of
$4.5 million in the form of a letter of credit from Safeguard through September
30, 2000 and substantially all of the assets of the Company. Safeguard is not
contractually obligated to satisfy any of the Company's obligations with the
exception of the $4.5 million letter of credit used as collateral for the
Company's credit facility. Borrowings bear interest at prime plus 1%. The
Company believes that the combination of Safeguard's letter of credit and the
working capital assets of the on going business will be sufficient to satisfy or
support the debt. As of June 29, 1998, outstanding borrowings under the credit
facility were $5.2 million with less than $100,000 of availability.

         On December 29, 1997 the credit facility was amended to increase the
availability up to an additional $395,000 through February 27, 1998 and for the
period beginning February 28, 1998 through August 27, 1998, by $195,000. The
Company was in default of its debt service ratio loan covenant as of December
31, 1997, but received a waiver from its lender on July 20, 1998 and the
financial covenants were revised to reflect the Company's continuing operations.

         In connection with the 1995 sale of its furniture business, the Company
received a $2.0 million Subordinate Note which bears interest at a rate of 8%
per annum. Interest began accruing on the Subordinate Note on August 25, 1996.
The principal amount of the Subordinate Note is being amortized on a seven-year
level schedule with semi-annual principal and interest payments and a balloon
payment due on August 25, 2000. Interest and principal payments on the
Subordinate Note commenced on February 25, 1997.

         As a result of discontinuing the furnishings and security systems
segments, the Company has emerged as a significantly downsized and restructured
company. Credit financing is available for limited working capital requirements.
If these sources of funds prove to be inadequate or in the case of credit
financing, unavailable, then the Company will have to seek additional funds from
other sources to continue operations. There can be no assurance that new sources
of funds, if required, will be available. However, based on the Company's
projections of operations and borrowing availability under the credit facility,
the Company believes it will be able to continue to operate in this restructured
mode and continues to focus on management of working capital and controlling
expenses to minimize the need to utilize availability under the credit facility.

         Capital expenditures in 1997 were $7,000, $14,400 in 1996 and $18,300
in 1995. The 1996 and 1995 expenditures were primarily used to upgrade computer
systems. Capital expenditures for 1998 are projected at approximately $20,000
with no formal commitments as of December 31, 1997.

                                       12

<PAGE>


Year 2000 Issues
- ----------------

         The Company is aware of year 2000 (Y2K) potential problems. Our
internal information systems are Y2K compliant and all our products are Y2K
compliant. The Company also has written to its primary vendors to assure their
compliance to Y2K issues. It is the intention of the Company to devote whatever
resources are necessary to assure Y2K compliance if any unknown situation should
occur between now and the year 2000.


Loss Per Share Applicable to Common Shareholders
- ------------------------------------------------

         The Company adopted Statement of Financial Account Standards No. 128,
Earnings Per Share ("SFAS No. 128"), which is designed to simplify the existing
computational guidelines for the earnings per share ("EPS") information provided
in financial statements, to revise the disclosure requirements and to increase
the comparability of EPS data on an international basis. Pursuant to SFAS No.
128, the Company reflected on its Consolidated Statements of Operations basic
EPS and diluted EPS for 1997, 1996 and 1995. Adoption of SFAS No. 128 did not
impact the amount of EPS reported and, due to the Company's losses in each of
the past three years, there is no difference in the amounts calculated as basic
EPS and diluted EPS. There were no options included in the diluted EPS
calculation for the years presented as the inclusion of options would have been
anti-dilutive.

         Treasury stock transactions are recorded on their trade date and reduce
weighted average shares outstanding from that date.


Recent Accounting Pronouncements
- --------------------------------

         In June 1997, the Financial Accounting Standards Board issued Statement
of Financial Accounting Standards No. 130, Reporting Comprehensive Income ("SFAS
No. 130"), which is effective for financial statements issued for periods
beginning after December 15, 1997. SFAS No. 130 requires the presentation of
comprehensive income and establishes standards for reporting its components
(revenues, expenses, gains and losses) in a full set of general-purpose
financial statements. The Company does not expect the adoption of SFAS No. 130
to have a material effect on its reported financial condition or results of
operations.

         In June 1997, the Financial Accounting Standards Board issued Statement
of Financial Accounting Standards No. 131, Disclosures about Segments of an
Enterprise and Related Information ("SFAS No. 131"), which is effective for
financial statements issued for periods beginning after December 15, 1997. SFAS
No. 131 establishes standards for the way publicly-traded companies report
information about operating segments as well as disclosures about products and
services, geographic areas and major customers. The Company does not expect the
adoption of SFAS No. 131 to have a material effect on its reported financial
condition or results of operations.

                                       13
<PAGE>

         In February 1998, The Financial Accounting Standards Board issued
Statement of Financial Accounting Standards No. 132, Employer's Disclosures
about Pensions and Other Postretirement Benefits ("SFAS No. 132"), which is
effective for financial statements issued for periods beginning after December
15, 1997. SFAS No. 132 standardizes the disclosure requirements of previous
standards. The Company does not expect the adoption of SFAS No. 132 to have a
material effect on its reported financial condition or results of operations.



Item 8.   Financial Statements
- -------   --------------------

         The consolidated financial statements and schedule appear at the end of
this report beginning on page F-1.

Item 9.   Changes in and Disagreements With Accountants on Accounting and
- -------   ---------------------------------------------------------------
Financial Disclosures
- ---------------------

         None.

                                    PART III

Item 10.  Directors and Executive Officers of Registrant
- -------   ----------------------------------------------

Executive Officers:

         The following persons were executive officers of the Registrant at June
30, 1998:

                                        Has Been an
                                          Officer
Name                          Age          Since       Position
- ----                          ---          -----       --------

George E. Mitchell            60           1984        President, Chairman and
                                                       Chief Executive Officer

Frederick B. Franks, III      58           1989        Vice President-Finance,
                                                       Chief Financial Officer,
                                                       Treasurer and Secretary



                                       14
<PAGE>

Directors:

<TABLE>
<CAPTION>
                                                                                  Has Been a
                              Principal Occupation and Business Experience         Director
Name                          During Last Five Years                                Since          Age
- ----                          ----------------------                                -----          ---

<S>                           <C>                                                   <C>            <C>
George E. Mitchell            President, Chairman and Chief Executive               1984           60
                              Officer of the Company

Anthony A. Nichols            Chairman, Brandywine Realty Trust , a real            1988           58
                              estate investment trust.  (1)(2)(4)

Richard P. Richter            President Emeritus, Ursinus College (1)(3)(5)         1989           67

W. Wayne Dunlop               Executive Vice President and Chief Operating          1995           51
                              Officer, Barclay White, Inc., a general
                              construction contracting and management firm
                              (1)(6)
</TABLE>

- ----------------------
(1)    Member of the Audit Committee.

(2)    Member of the Compensation Committee.

(3)    Member of the Stock Option Committee.

(4)    Prior to August 1996, Mr. Nichols was President of the Nichols Company,
       an owner and manager of commercial office and industrial space.

(5)    Prior to January 1, 1995, Mr. Richter was President of Ursinus College.

(6)    Mr. Dunlop has been Chief Operating Officer of Barclay White since
       September 1995 and executive Vice President since September 1994. Prior
       to September 1994 he was a Senior Vice President of Barclay White.

Disclosure of Delinquent Filers Pursuant to Item 405 of Regulation S-K:

         Section 16(a) of the Securities Exchange Act of 1934 requires the
Company's directors, executive officers, and persons who own more than ten
percent of a registered class of the Company's equity securities ("10%
Stockholders") to file reports of ownership and changes in ownership of Common
Stock and other equity securities of the Company with the Securities and
Exchange Commission ("SEC"). Officers, directors and 10% Stockholders are
required by SEC regulation to furnish the Company with copies of all Section
16(a) forms they file. Based solely on its review of the copies of such forms
received by it and written representations from certain reporting persons that
no other reports were required for those persons, the Company believes that
during the period from January 1, 1997 to December 31, 1997, all Section 16(a)
filing requirements applicable to its officers, directors and 10% Stockholders
were complied with.

                                       15

<PAGE>


Item 11.    Executive Compensation
- -------     ----------------------

REPORT OF THE BOARD COMPENSATION COMMITTEE

         The Compensation Committee of the Board of Directors (the "Committee")
determines compensation levels, including incentive compensation, for the
executives of the Company. Anthony A. Nichols is presently serving as the sole
member of the Compensation Committee.

Executive Compensation Policies

         The Company was and is in a highly competitive industry. In order to
succeed, the Company believes that it must be able to attract and retain
qualified executives, promote among them the economic benefits of stock
ownership in the Company, and motivate and reward executives who, by their
industry, loyalty and exceptional service, make contributions of special
importance to the success of the business of the Company. The Company has
structured its executive compensation program to support the strategic goals and
objectives of the Company.

         Base compensation levels and benefits for executives generally had been
set in previous years to be between the lower end and the midpoint of the scale
of compensation paid by comparable companies in the Company's principal
industry. Conversely, incentive programs were regarded to be above the midpoint
of the scale in the industry. In pursuing this philosophy, the Company believed
it could keep the fixed component of the compensation package at reasonable
levels while incenting its key executives and managers to achieve better than
average results. Therefore, the total cash compensation plan is made up of a
lower base and higher incentive opportunity which in total would be competitive
with comparable companies in the industry if the Company's objectives are
achieved. For the purpose of establishing these levels, the Company had reviewed
an evaluation by an independent compensation consultant of various published
industry salary surveys. In setting executive compensation packages for 1995,
1996 and 1997 the Committee considered an evaluation of executive compensation
levels for comparably-sized companies in the electrical contracting industry. In
the future, the Compensation Committee will re-examine executive compensation in
light of Airo Clean's business becoming the Company's primary business.

         Annual cash bonuses in 1996 and 1997 were, and in 1998 will be based on
Company income and individual goals. At the beginning of each year, the
Committee approves a target range of income, and a range of potential bonus
amounts for the chief executive officer and each other executive officer, stated
as a percentage of base salary. Performance bonuses are awarded at year-end
based on the actual income compared to the target income, and the achievement of
individual objectives and individual contributions during the year to the
achievement by the Company of its financial and strategic objectives, which the
Board determines in its discretion.

         Grants of Company stock options are intended to align the interests of
executives and key employees with the long-term interests of the Company's
stockholders, and to encourage executives and key employees to remain in the
Company's employ. Generally, grants are not made in every year, but are awarded
subjectively based on a number of factors, including the pre-tax operating
earnings of the Company, the individual's contributions to the achievement of
the Company's financial and strategic objectives, and the amount and remaining
term of options already held by an individual. The Stock Option Committee of the
Board administers the Company's stock option plan. In 1997, options for 50,000
shares were issued to Mr. Franks, and are intended to replace 50,000 options
held by Mr. Franks which expire in December 1998. See "Stock Options," below.

                                       16
<PAGE>

CEO Compensation

         In 1994, the Committee set Mr. Mitchell's base salary at $140,000.
However, based on the Company's performance and its cash flow problems, in
April, 1994, Mr. Mitchell initiated a 16% reduction in his salary in order to
conserve Company resources. Mr. Mitchell has continued to draw base salary at
this reduced level through the end of 1997 and to the date of this report. A
payment of $25,000 was made to Mr. Mitchell in March 1996 to partially
compensate him for the salary foregone in 1994 and 1995. Since the Company
failed to achieve the established target range of return on assets during 1996
and 1997, no bonus was paid to Mr. Mitchell for those years.

Other Executive Compensation

         Mr. Franks, the Company's Vice-President-Finance and Chief Financial
Officer, is currently the Company's only other executive officer. Mr. Franks
received a payment of $16,000 in March, 1996 to compensate him for salary
foregone in 1994 and 1995.

By the Compensation Committee:

Anthony A. Nichols


EXECUTIVE COMPENSATION

Summary Compensation of Executive Officers

         The following table sets forth information concerning compensation paid
to the Chief Executive Officer and to each other person who was an executive
officer of the Company at any time during 1997 and whose salary and bonus
exceeded $100,000 in 1997.
<TABLE>
<CAPTION>
                           Summary Compensation Table
- ----------------------------------------------------------------------------------------------------------------------
                                                                                           Long Term
                                                     Annual Compensation                  Compensation
                                             ------------------------------------------   ------------
                                                                                             Awards
                                                                                          ------------
                                                                                           Securities
                                                                          Other Annual     Underlying      All Other
                                                                          Compensation      Options/      Compensation
Name and Principal Position    Year          Salary($)(1)   Bonus($)      ($)(2)              SARS (#)     ($)(3)(4)
- ----------------------------------------------------------------------------------------------------------------------
<S>                <C>         <C>           <C>        <C>               <C>                     <C>       <C>
George E. Mitchell (5)         1997          $117,600   $      0          $18,976                 0         $34,316
President, Chairman and        1996           117,600          0           18,331                 0          33,170
Chief Executive Officer        1995           142,600          0           17,733                 0          32,106
- ----------------------------------------------------------------------------------------------------------------------
Michael H. Pelosi III          1997          $100,000   $      0                0                 0         $     0
President, Airo Clean, Inc.    1996           100,000   $ 75,000                0            25,000         $37,500
through August, 1997 (6)       1995            99,801      5,465                0            50,000          37,500
- ----------------------------------------------------------------------------------------------------------------------
Frederick B. Franks, III (5)   1997          $100,000   $      0          $11,939            50,000         $18,910
Vice President-Finance and     1996           100,000          0          $11,552            30,000         $18,222
Chief Financial Officer        1995           108,154          0           11,194                 0          17,587
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>

(1)      Includes annual compensation which has been deferred by the named
         executives pursuant to the Company's 401(k) Tax Deferred Retirement and
         Incentive Plan ("401(k) Plan").

                                       17
<PAGE>

(2)      Represents amounts reimbursed during the fiscal year for the payment of
         taxes. Perquisites and other personal benefits did not exceed the
         lesser of $50,000 or 10% of any executive officer's salary and bonus
         and accordingly have been omitted from the table as permitted by the
         rules of the Securities and Exchange Commission.

(3)      The stated amounts for fiscal 1996 include the following amounts for
         each named executive officer: Company contributions under the 401(k)
         Plan -- Mr. Mitchell, $0; Mr. Pelosi, $0; Mr. Franks, $0; term life and
         disability premiums -- Mr. Mitchell, $26,589; Mr. Pelosi, $0; Mr.
         Franks, $14,536; current dollar value of benefits to the named
         executives of the remainder of split-dollar premiums paid by the
         Company -- Mr. Mitchell, $6,581; Mr. Pelosi, $0; Mr. Franks, $3,686;
         residual salary payments agreed to in connection with acquisition --Mr.
         Mitchell, $0; Mr. Pelosi, $37,500; Mr. Franks, $0.

(4)      The stated amounts for fiscal 1997 include the following amounts for
         each named executive officer: Term life and disability premiums -- Mr.
         Mitchell, $27,735; Mr. Pelosi, $0; Mr. Franks, $15,224; current dollar
         value of benefits to the named executives of the remainder of
         split-dollar premiums paid by the Company -- Mr. Mitchell, $6,581; Mr.
         Pelosi, $0; Mr. Franks, $3,686.

(5)      The 1995 amount includes salary adjustment paid on March 15, 1996 to:
         Mr. Mitchell, $25,000 and Mr. Franks, $16,000.

(6)      Mr. Pelosi ceased to be an executive officer of the Company in August
         1997. He continues to serve the Company as a sales representative. The
         amounts in 1997 include both amounts Mr. Pelosi received as an
         executive officer and amounts he received as a sales representative.


Stock Options

         The following table sets forth information with respect to the number
         of unexercised options and the value of unexercised in-the-money
         options at December 31, 1997.

         Aggregated Option/SAR Exercises in Last Fiscal Year and FY-End
         Option/SAR Values

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------------------------
                                                      Number of Securities Underlying
                                                                Unexercised
                                                           Options/SARs at Fiscal       Value of Unexercised
                             Shares                                Year-End             In-The Money Options/SARs
                            Acquired       Value                   (#)(1)               at Fiscal Year-End ($)(1)
                               on         Realized
                            Exercise       ($)          Exercisable     Unexercisable   Exercisable   Unexercisable
Name                          (#)
- --------------------------------------------------------------------------------------------------------------------
<S>                             <C>      <C>                     <C>             <C>    <C>            <C>
George E. Mitchell              0        $      0                   0               0    $      0       $     0
- --------------------------------------------------------------------------------------------------------------------
Michael H. Pelosi III           0        $      0              76,250          43,750    $      0       $     0
- --------------------------------------------------------------------------------------------------------------------
Frederick B. Franks III         0        $      0              61,250          68,750    $      0       $     0
- --------------------------------------------------------------------------------------------------------------------
</TABLE>

(1)      On December 31, 1997, the fair market value of the common stock was
         $.15. No options were in-the-money on that date.

         During Fiscal Year 1997, Mr. Franks was granted options for 50,000
shares, of the Company's common stock under the Company's 1993 Stock Option
Plan. These options were issued at the market price on the date of grant, expire
seven years after the date of grant, and vest in twenty-five percent increments
annually beginning one year from the date of grant. No options were granted to
the Company's Chief Executive Officer in 1997. The following table sets forth
certain information regarding the options granted to Mr. Franks in 1997:

                                       18
<PAGE>
<TABLE>
<CAPTION>

                                      Options/SAR Grants in Last Fiscal Year
- ------------------------------------------------------------------------------------------------------------------
                                                                                        Potential Realizable Value
                                                                                            at Assumed Annual
                                                                                           Rates of Stock Price
                                                                                               Appreciation
                               Individual Grants                                              for Option Term
- ------------------------------------------------------------------------------------------------------------------
            Name                  Number of       % of Total
                                 Securities        Options/      Exercise    Expiration
                                 Underlying          SARs        or Base        Date
                                Options/SARs      Granted to      Price
                                   Granted       Employees in    ($/Sh)
                                                 Fiscal Year                                 5% ($)       10% ($)
- ------------------------------------------------------------------------------------------------------------------
<S>                                <C>              <C>           <C>        <C>   <C>       <C>           <C>
Frederick B. Franks, III           50,000           21.6%         $.20       08/01/04        $4,071        $9,487
- ------------------------------------------------------------------------------------------------------------------
</TABLE>


Employment Contracts and Termination of Employment and Change-In-Control
Arrangements.

         Prior to his resignation as an executive officer in August 1997,
Michael H. Pelosi III had an employment agreement with the Company providing for
at a minimum base salary of $100,000, plus a bonus based on Airo Clean's net
income. Upon his resignation as President of Airo Clean, that contract was
released. Mr. Pelosi now serves as a sales representative and therefore was not
entitled to a bonus in 1997.

                            STOCK PERFORMANCE GRAPHS

         The following chart compares the cumulative total stockholder return on
the Company's Common Stock for the period December 31, 1992 through December 31,
1997 with the cumulative total return on the NASDAQ Index and the cumulative
total return for a peer group index for the same period. Because the Company has
discontinued its security systems operations, the Company has selected as a new
peer group SIC Code 3564 - Industrial and Commercial Fans and Blowers and Air
Purification Equipment, which is the primary industry in which the Company is
continuing to operate.

  275---------------------------------------------------------------------------

  250------------------------------------------------------------------------+--

D 225---------------------------------------------------------------------------

O 200--------------------------------------------------------+------------------

L 175---------------------------------------------------------------------------
                                                 +                           *
L 150---------------------------------------------------------------------------
                       #                                     *
A 125------------------------------+--------------------------------------------
                       +                         *           
R 100#*+---------------*--------------------------------------------------------
                                   *
S  75---------------------------------------------------------------------------
                                   #
   50---------------------------------------------------------------------------
                                                 #           # 
   25------------------------------------------------------------------------#--
                       
    0---------------------------------------------------------------------------
     1992            1993         1994         1995         1996            1997

                         # Core Technologies (Pennsylvania), Inc.             
                         * SIC Code Index
                         + NASDAQ Market Index
<TABLE>
<CAPTION>
<S>                                               <C>       <C>        <C>          <C>          <C>          <C>
COMPANY/INDEX/MARKET                              1992      1993       1994         1995          1996        1997

Core Technologies (Pennsylvania), Inc.            100      133.33      66.67        33.33         35.56       26.67
SIC Code Index                                    100       98.43      94.35       110.02        131.91      169.75
NASDAQ Market Index                               100      119.95     125.94       163.35        202.99       248.3
</TABLE>

                                       19

<PAGE>

As required by the rules of the Securities and Exchange Commission, the chart
below compares the cumulative stockholder return on the Company's common Stock
with the cumulative total return on the NASDAQ Index and the peer group used in
the chart presented in the Company's 1997 proxy statement. The peer group in
this chart consists of SIC Code 1731 Electrical Contractors.


  275---------------------------------------------------------------------------

  250------------------------------------------------------------------------+--

D 225---------------------------------------------------------------------------

O 200------------------------------------------------------+--------------------

L 175---------------------------------------------------------------------------
                                               +                            
L 150---------------------------------------------------------------------------
                     #                                     
A 125----------------------------+----------------------------------------------
                     +                                    
R 100#*+------------------------------------------------------------------------
                                 
S  75---------------------------------------------------------------------------
                                 #
   50---------------------------------------------------------------------------
                                               #           # 
   25-----------------------------------------------------------------------#*--
                     *           *             *           *
    0---------------------------------------------------------------------------
     1992          1993         1994         1995         1996            1997

                         # Core Technologies (Pennsylvania), Inc.             
                         * SIC Code Index
                         + NASDAQ Market Index


<TABLE> 
<CAPTION>

COMPANY/INDEX/MARKET                             1992        1993          1994          1995          1996         1997
<S>                                               <C>       <C>            <C>          <C>           <C>           <C>
Core Technologies (Pennsylvania), Inc.            100       133.33         66.67        33.33         35.56         26.67
SIC Code Index                                    100        29.79         10.72        16.92         20.27         24.29
NASDAQ Market Index                               100       119.95        125.94       163.35        202.99         248.3


</TABLE>

The above charts each assume that $100 was invested on December 31, 1992 in the
Company's Common Stock and in each of the comparison groups, and assumes
reinvestment of dividends.

Directors' Compensation

         Directors are elected annually and hold office until their successors
are elected and have qualified or until their earlier resignation or removal.
Directors who are not employees of the Company are paid a quarterly fee of
$1,000 and $400 for each Board meeting attended, including committee meetings
attended on a date other than a Board meeting date.

         The Company also maintains a stock option plan for Non-Employee
Directors (the "Directors' Plan") which provides for the grant of options to
directors not otherwise employed by the Company, its parent or any of its
subsidiaries ("Eligible Director"). Each Eligible Director receives, as of the
date such person first becomes an Eligible Director, an option to purchase 5,000
shares of the Company's Common Stock at an option exercise price equal to the
fair market value of the Common Stock on the date of grant. All options granted
under the Directors' Plan vest in four equal annual installments beginning on
the first anniversary of the date of option grant and have a term of seven
years. During 1996, Mr. Nichols and Mr. Richter were each granted options for
10,000 shares of the Company's common stock exercisable at $.26 per share; Mr.
Dunlop was granted options for 5,000 shares at $.25 per share and 10,000 shares
at $.26 per share. No options were granted to or exercised by any Eligible
Director during 1997.

Item 12.    Security Ownership of Certain Beneficial Owners and Management
- --------    --------------------------------------------------------------

         The following table sets forth as of June 24, 1998, the Company's
Common Stock beneficially owned by each person known to the Company to be the
beneficial owner of more than 5% of the outstanding Common Stock, and the number
of shares of Common Stock owned beneficially by each director, by each named
executive officer, and by all executive officers and directors as a group. In
addition to the information regarding the Company's Common Stock listed below,
as of June 24, 1998, there were 15,000 Series A Shares issued and outstanding.
All of such Series A Shares are owned of 

                                       20
<PAGE>

record by Safeguard Scientifics (Delaware), Inc., a wholly owned subsidiary of
Safeguard Scientifics, Inc. ("Safeguard"), and consequently are beneficially
owned by Safeguard.

<TABLE>
<CAPTION>
                                                                    Number of               Percent
                                                                  Shares Owned (1)          Of Class
                                                                  ----------------          --------
<S>                                                               <C>                      <C>   
Safeguard Scientifics (Delaware), Inc. (2)..............            4,059,757                37.93%
  103 Springer Building.................................
  3411 Silverside Road
  Wilmington, DE  19803
Philip J. Donnelly......................................              838,333                 9.38%
  9 Dumming Road
  Newtown Square, PA  19073
George E. Mitchell (3)..................................            1,504,584                16.90%
  110 Summit Drive
  Exton, PA   19341
Frederick B. Franks (4).................................              903,333                10.09%
  110 Summit Drive
  Exton, PA   19341
W. Wayne Dunlop (4).....................................                5,000                  *
Anthony A. Nichols (4)..................................               30,938                  *
Richard P. Richter (4)..................................                6,350                  *
Officers and directors
as a group (5 persons) (5)..............................            2,450,205                27.32%
</TABLE>

- -------------------------------
(*)      Less than 1%.

(1)      Except as otherwise disclosed, the nature of beneficial ownership is
         the sole power to vote and to dispose of the shares (except for shares
         held jointly with spouse). 233,334 shares owned by Mr. Mitchell, and
         233,333 shares each held by Mr. Franks, are redeemable by the Company
         to satisfy exercises of employee stock options. See Item 13.

(2)      Safeguard Scientifics (Delaware), Inc. is the record owner of 2,244,757
         shares of Common Stock and 15,000 Series A Shares, which are presently
         convertible into 1,815,000 shares of Common Stock, which includes the
         potential conversion of accrued dividends as of December 31, 1997. Such
         shares are beneficially owned by Safeguard. All of the shares
         beneficially owned by Safeguard have been pledged by Safeguard as
         collateral in connection with its bank line of credit.

(3)      Includes 300,000 shares of Common Stock held by Mr. Mitchell's spouse.

(4)      Includes for Messrs. Franks, Dunlop, Nichols, and Richter 65,000,
         5,000, 6,250 and 6,250 shares, respectively, which may be acquired
         pursuant to stock options which are currently exercisable.

(5)      Includes 82,500 shares which may be acquired pursuant to stock options
         which are currently exercisable.

Item 13.      Certain Relationships and Related Transactions
- --------      ----------------------------------------------

         The Company rents 21,580 square feet of office space used as its
headquarters in Exton, Pennsylvania. Prior to the third quarter of 1996, this
facility was owned by Safeguard; it has subsequently been transferred to
Brandywine Realty Trust, a Real Estate Investment Trust of which Anthony
Nichols, a director of the Company, is Chairman. The Company pays a monthly
rental of $12,588 plus its proportionate share of the

                                       21
<PAGE>

monthly operating expenses. The Company believes the lease terms are no less
favorable than could be obtained from an unrelated third party.

         Safeguard currently has in place letters of credit in the aggregate
amount of $4,500,000 to guaranty the Company's bank loans through September 30,
2000. Safeguard has guaranteed varying amounts of the Company's debt in the
past. Safeguard received no monetary compensation for the extension of these
guarantees. The Company has agreed to indemnify Safeguard against loss resulting
from the above described guarantees.

         In June 1994, Safeguard purchased from the Company 15,000 shares of its
Series A Redeemable Convertible Preferred Stock ("Series A Shares") for an
aggregate purchase price of $1.5 million. The Series A Shares are convertible
into shares of Common Stock based on a conversion price of $1.00 per share of
Common Stock. The conversion price and number of shares into which the Series A
Shares may be converted are subject to anti-dilutive adjustments. The Series A
Shares are entitled to a 6% per annum dividend payable out of legally available
funds. Dividends which are not declared and paid will accumulate and are
convertible into Common Stock at $1.00 per share. No dividends have been
declared to date. Unpaid, undeclared cumulative dividends as of December 31,
1997 were $315,000. The Series A Shares are entitled to one vote for each share
of Common Stock into which such Series A Shares may be converted. The Company
may redeem the Series A Shares at any time and must redeem all outstanding
Series A Shares on June 1, 2001.

         In March 1995, the Company sold all of the capital stock of CenterCore
Canada Limited to Safeguard for $10,000. CenterCore Canada had an intercompany
liability to the Company of approximately $369,300, which liability survived the
stock sale. In February, 1996, Safeguard sold the assets of Safeguard Canada for
a cash payment of $100,000 U.S. plus contingent deferred payments equal to three
percent of the purchaser's annual consolidated revenues from all or any part of
the business or assets sold to the purchaser in the years 1996 through 2000, up
to a maximum aggregate of $100,000. The debt between CenterCore Canada and the
Company was satisfied by CenterCore Canada's assignment to the Company of the
cash proceeds and the rights to the contingent deferred payments.

         Effective September 29, 1995, Safeguard contributed to the capital of
the Company 2,000,000 shares of the Company's common stock and sold to Mr.
Mitchell, Mr. Franks and Philip J. Donnelly, a former Vice President of the
Company, an aggregate of 2,500,000 shares of the Company's common stock, at a
price of $.10 per share, payable in the form of a five year, interest-bearing
promissory note. The promissory notes bear interest at a rate of 6.35% per annum
and are payable in full upon the maturity date, September 29, 2000. Each
individual is required, however, to prepay the outstanding balance to the extent
of 25% of the proceeds of any sale or other disposition of any of the shares
purchased from Safeguard. The parties estimated the fair market value of the
shares to be $.10 as of the date of issue, taking into account a discount for
lack of liquidity, after the common stock of the Company was delisted from
NASDAQ.

         Mr. Mitchell, Mr. Franks and Mr. Donnelly have entered into an
agreement with the Company pursuant to which they have deposited an aggregate of
700,000 of the shares acquired from Safeguard into escrow with the Company. The
Company may redeem these escrowed shares in order to satisfy exercises of
options under the Company's 1993 Stock Option Plan. The redemption price payable
by the Company will be equal to the exercise price payable by the individual
exercising the option. No shares had been redeemed through December 31, 1997.

         In 1995, Safeguard advanced $887,000 to the Company to cover closing
costs of the sale of the furnishings business and payments to Maris' sureties.
The Company has issued to Safeguard a Subordinated Note to evidence this
obligation. The Subordinated Note accrues interest at 6% per annum. Interest and
principal are due on December 31, 2000 but the Subordinated Note is subordinated
to all the Company's obligations to its other lenders. Additionally, if the
Safeguard letter of credit which secures the 

                                       22
<PAGE>

Company's borrowing can be cancelled prior to December 31, 2000, Safeguard has
agreed forgive all obligations under the Subordinated Note.

         In connection with the Airo Clean acquisition, Airo Clean entered into
a lease for approximately 15,300 square feet of flex office, warehouse and
assembly space in Exton, PA from Michael Pelosi, Jr. and Lucille Pelosi, who are
the parents of Michael H. Pelosi, III. (formerly the President of Airo Clean).
The lease continues through December 2001. The rent is approximately $110,000
per annum, and the Company is required to pay the operating expenses for the
leased premises. The Company subleased the space in 1996 and part of 1997, but
the subtenant filed for bankruptcy and vacated the premises. The Company
currently does not use this space and is seeking a new subtenant.


                                     PART IV

Item 14.      Exhibits, Financial Statement Schedules and Reports on Form 8-K
- --------      ---------------------------------------------------------------

(a)  The following Financial Statements are included with this Annual Report.

     CONSOLIDATED FINANCIAL STATEMENTS AND FINANCIAL STATEMENT SCHEDULE
     ------------------------------------------------------------------
       INDEPENDENT AUDITORS' REPORT
       CONSOLIDATED BALANCE SHEETS
       CONSOLIDATED STATEMENTS OF OPERATIONS
       CONSOLIDATED FINANCIAL STATEMENTS

       FINANCIAL STATEMENT SCHEDULE
       ----------------------------
       SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

(b)  Reports on Form 8-K

     During the fiscal year ended December 31, 1997, the Company did not
     file any Reports on Form 8-K. One Form 8-K dated June 8, 1998 was filed
     on June 30, 1998 to report pursuant to Item 2 the sale of the assets of
     Maris Equipment Company, Inc. to Security Technologies Group, Inc. ,
     effective June 1, 1998.

(c)  Exhibits

              The Following is a list of exhibits  required by Item 601 of  
regulation  S-K to be filed as part of this Report.

<TABLE>
<CAPTION>

Exhibit No.             Exhibit
- -----------             -------

<S>               <C>                                                          
3.1               Amended and Restated Certificate of Incorporation

3.2               By-Laws

4.1               Reference  is made to  Exhibit  3.1 for the rights and  preferences  of the  Company's
                  Series A Redeemable Convertible Preferred Stock

4.2               Form of certificate representing the shares of Common Stock

4.3**             Amended and Restated 1984 Stock Option Plan of CenterCore, Inc.

4.4**             Stock Option Plan for Non-Employee Directors
</TABLE>

                                       23
<PAGE>
<TABLE>
<CAPTION>

Exhibit No.             Exhibit
- -----------             -------

<S>               <C>            
4.5**             1993 Stock Option Plan

4.6               Certificate of Designation for Series A Preferred Stock

10.1              Loan and Security Agreement dated March 14, 1997 by and among Core Technologies
                  (Pennsylvania), Inc., Maris Equipment Co., Inc. and Airo Clean, Inc. (Borrowers) and
                  FINOVA Capital Corporation (Lender)

10.2              $887,000 Subordinated Note from Core Technologies, Inc. to Safeguard Scientifics
                  (Delaware), Inc. dated August 25, 1995

10.3              Subordination Agreement dated March 14, 1997 between Safeguard Scientifics (Delaware),
                  Inc. and FINOVA Capital Corporation, and acknowledged by Core Technologies
                  (Pennsylvania), Inc.

10.4              Assignment and Assumption of Lease Agreement for 212 Phillips Road, Lionville, PA
                  dated as of February 1, 1993 between Airo Clean Engineering, Inc. and Airo Clean
                  Acquisition Corp.

10.5              Lease Agreement between CenterCore, Inc. and The Nichols Company dated September 29,
                  1993 for 110 Summit Drive, Exton, PA and Landlord's Waiver dated February 9, 1994

10.6              Lease Agreement between Maris Equipment Company and Chesco Nichols Company dated July
                  23, 1986 for 110C Summit Drive, Exton, PA and amendments thereto 10.7 Fourth Amendment
                  to Lease

10.8**            CenterCore, Inc. 401(k) Tax Deferred Retirement and Incentive Plan

10.9**            CenterCore, Inc. 401(k) Tax Deferred Retirement and Incentive Plan, Amendment 2-93

10.10**           Third Amendment to the CenterCore, Inc. 401(k) Tax Deferred Retirement and Incentive
                  Plan effective as of June 1, 1994

10.11             Asset Purchase Agreement dated February 1, 1993 between Airo Clean Acquisition Corp.
                  and Airo Clean Engineering, Inc. and Michael H. Pelosi, III, Joseph Pelosi and Michael
                  H. Pelosi, Jr. (schedules and exhibits omitted)

10.12**           Employment Agreement dated February 1, 1993 between Airo Clean, Inc. and Michael H.
                  Pelosi, III

10.13             Exclusive License Agreement between Michael H. Pelosi III and Airo Clean, Inc. dated
                  as of February 1, 1993

10.14             Asset Purchase Agreement dated September 15, 1993 among MEC Acquisition, Inc.,
                  CenterCore, Inc., Maris Equipment Company and JWP Inc.

10.15             Agreement and Release dated June 19, 1995 among CenterCore, Inc., Maris Equipment
                  Company, Inc., Safeguard Scientifics, Inc., EMCOR Group, Inc., JWP/MEC Corp., and
                  Seaboard Surety Company

10.16             Agreement dated June 16, 1995 among CenterCore, Inc., Maris Equipment Company, Inc.
                  and Insurance Company of North America

10.17             Agreement dated June 19, 1995 among CenterCore, Inc., Maris Equipment Company, Inc.
                  and Liberty Mutual Insurance Company
</TABLE>

                                       24
<PAGE>

<TABLE>
<CAPTION>

Exhibit No.             Exhibit
- -----------             -------

<S>               <C>            
10.18             $1.1 Million Note to Safeguard Scientifics, Inc. dated September 22, 1993

10.19             Asset Purchase Agreement dated May 26, 1995 among CenterCore, Inc., Corel Corporate
                  Seating, Inc. and The CenterCore Group, Inc.

10.20             Amendment No. 1 dated as of June 30, 1995 to Asset Purchase Agreement

10.21             Option Shares Escrow Agreement dated September 29, 1995, by and between George
                  Mitchell, Frederick Franks III, Philip Donnelly and the Company

10.22             Promissory Note dated September 29, 1995 from George Mitchell to Safeguard in the
                  principal amount of $83,333

10.23             Promissory Note dated September 29, 1995 from Frederick Franks III to Safeguard in the
                  principal amount of $83,333

10.24             Promissory Note dated September 29, 1995 from Philip Donnolly to Safeguard in the
                  principal amount of $83,333

10.25             Asset Purchase and Sale Agreement dated June 8, 1998 by and between Maris Equipment
                  Company, Inc., as Seller and Security Technologies Group, Inc., as Buyer, effective
                  June 1, 1998.

10.26             Interim Services Agreement dated June 8, 1998, by and among Maris Equipment Company,
                  Inc., Core Technologies (Pennsylvania), Inc. and Security Technologies Group, Inc.

11                Computation of Per Share Earnings (Loss)

21                List of Subsidiaries

23                Consent of Independent Auditors

27                Financial Data Schedule
</TABLE>

- ------------------
**       These exhibits relate to compensatory plans, contracts or arrangements
         in which directors and/or executive officers of the registrant may
         participate.

                                       25
<PAGE>


                                   SIGNATURES

         Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.

Dated: July 23, 1998                CORE TECHNOLOGIES (PENNSYLVANIA), INC.


                                    By:  /s/ George E. Mitchell
                                         -------------------------------------
                                         George E. Mitchell
                                         President and Chief Executive Officer

         Pursuant to the requirements of the Securities Exchange Act of 1934,
this report has been signed below by the following persons on behalf of the
Registrant and in the capacities and on the dates indicated.
<TABLE>
<CAPTION>

                  Name and Title                     Signature                             Date
                  --------------                     ---------                             ----
<S>                                         <C>                                         <C> 
George E. Mitchell
Chief Executive Officer and Director        /s/ George E. Mitchell                      July 23, 1998
                                            -----------------------------------

Frederick B. Franks, III
Chief Financial Officer                     /s/ Frederick B. Franks, III                July 23, 1998
                                            -----------------------------------

Anthony A. Nichols
Director                                    /s/ Anthony A. Nichols                      July 23, 1998
                                            ------------------------------------

Richard P. Richter
Director                                    /s/ Richard P. Richter                      July 23, 1998
                                            ------------------------------------

W. Wayne Dunlop
Director                                    /s/ W. Wayne Dunlop                         July 23, 1998
                                            ------------------------------------
</TABLE>

<PAGE>

Independent Auditors' Report


The Board of Directors and Stockholders
Core Technologies (Pennsylvania), Inc.:

We have audited the consolidated balance sheets of Core Technologies
(Pennsylvania), Inc. and subsidiaries as of December 31, 1997 and 1996 and the
related consolidated statements of operations, stockholders' deficit and cash
flows for each of the years in the three-year period ended December 31, 1997. In
connection with our audit of these consolidated financial statements, we also
have audited the consolidated financial statement schedule as listed in the
accompanying index. These consolidated financial statements and financial
statement schedule are the responsibility of the Company's management. Our
responsibility is to express an opinion on these consolidated financial
statements and financial statement schedule based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present
fairly, in all material respects, the financial position of Core Technologies
(Pennsylvania), Inc. and subsidiaries as of December 31, 1997 and 1996, and the
results of their operations and their cash flows for each of the years in the
three-year period ended December 31, 1997, in conformity with generally accepted
accounting principles. Also, in our opinion, the related consolidated financial
statement schedule, when considered in relation to the basic consolidated
financial statements taken as a whole, presents fairly, in all material
respects, the information set forth therein.

/s/ KPMG Peat Marwick LLP
- --------------------------

Philadelphia, Pennsylvania
March 6, 1998, except as to note 2 which is as of June 8, 1998, and the second
paragraph of note 7 which is as of July 20, 1998.




                                      F-1

<PAGE>
CORE TECHNOLOGIES (PENNSYLVANIA), INC.
- -------------------------------------------------------------------------------
Consolidated Balance Sheets
<TABLE>
<CAPTION>
                                                                            December 31,             December 31,
                                                                                1997                    1996
                                                                            ------------             ------------
<S>                                                                        <C>                      <C>
Current assets
 Cash                                                                       $    133,200             $     15,900
 Receivables, less allowances ($18,000 --1997; $15,000 --1996)                   921,000                1,292,400
 Inventories                                                                     527,500                  321,300
 Notes receivable                                                                280,300                  280,300
 Other current assets                                                            110,600                   38,200
                                                                            ------------             ------------
 Total current assets                                                          1,972,600                1,948,100

Net assets of discounted operation                                               455,800                1,012,200

 Plant and equipment
 Leasehold improvements                                                           37,900                   34,800
 Machinery and equipment                                                          86,000                   82,100
                                                                            ------------             ------------
                                                                                 123,900                  116,900
 Less accumulated depreciation and amortization                                  (94,500)                 (69,300)
                                                                            ------------             ------------
 Net plant and equipment                                                          29,400                   47,600

Other assets
 Goodwill, net                                                                   487,800                  535,800
 Notes receivable                                                              1,234,200                1,682,000
                                                                            ------------             ------------
 Total other assets                                                            1,722,000                2,217,800
                                                                            ------------             ------------
                                                                            $  4,179,800             $  5,225,700
                                                                            ============             ============

Liabilities and Stockholders' Deficit
Current liabilities
 Accounts payable                                                           $    865,700             $  1,025,700
 Accrued expenses                                                                287,800                  559,600
                                                                            ------------             ------------
 Total current liabilities                                                     1,153,500                1,585,300

Long-term debt                                                                 5,983,100                4,952,900
Long-term debt - related party                                                   887,000                  887,000
Other liabilities                                                                981,200                  981,200

Redeemable convertible preferred stock issued to related shares;               1,815,000                1,725,000

Stockholders' deficit
 Common stock, $.01 par value; Authorized -- 20,000,000 shares;
   Issued - (9,217,326 shares--1997 and1996)                                      92,200                   92,200
 Additional paid-in capital                                                    7,668,900                7,758,900
 Accumulated deficit                                                         (13,980,600)             (12,336,300)
 Treasury stock at cost - 330,000 shares                                        (420,500)                (420,500)
                                                                            ------------             ------------
 Total stockholders' deficit                                                  (6,640,000)              (4,905,700)
                                                                            ------------             ------------
                                                                            $  4,179,800             $  5,225,700
                                                                            ============             ============
</TABLE>


See notes to consolidated financial statements

                                      F-2

<PAGE>

CORE TECHNOLOGIES (PENNSYLVANIA), INC.
- -------------------------------------------------------------------------------
Consolidated Statements of Operations
<TABLE>
<CAPTION>
                                                                                               Year ended December 31,
                                                                                    1997                1996              1995
                                                                                ------------       ------------       ------------
<S>                                                                             <C>                <C>                <C>
Net sales                                                                       $  5,120,500       $  7,354,500       $  4,676,300
Cost of goods sold                                                                 3,944,100          4,851,400          3,279,300
                                                                                ------------       ------------       ------------
    Gross profit                                                                   1,176,400          2,503,100          1,397,000

Operating expenses:
    Sales and marketing                                                              734,900            694,900            506,700
    General and administrative                                                       924,300          1,040,700            539,800
                                                                                ------------       ------------       ------------
Total operating expenses                                                           1,659,200          1,735,600          1,046,500
                                                                                ------------       ------------       ------------

Income (loss) from continuing operations                                            (482,800)           767,500            350,500

Other income (expense):
  Interest - income                                                                  153,900
  Interest - expense                                                                 (89,200)           (46,900)           (45,600)
                                                                                ------------       ------------       ------------

Income (loss) from continuing operations before provision for income taxes          (418,100)           720,600            304,900
Provision for (benefit of ) income taxes                                             (20,200)           331,000            139,000
                                                                                ------------       ------------       ------------

Earnings (loss) from continuing operations                                          (397,900)           389,600            165,900


Loss from discontinued security systems operation (net of tax benefit
  of $0, $256,000 and $359,700 in 1997, 1996 and 1995, respectively)              (1,246,400)        (1,491,400)          (114,300)
Gain on disposition of discontinued furnishings operation                                               650,000            100,000
                                                                                ------------       ------------       ------------

Net earnings (loss)                                                             $ (1,644,300)          (451,800)      $    151,600
                                                                                ============       ============       ============

Net earnings (loss) per share: - Basic
  Continuing operations                                                         $       (.05)      $        .04       $        .02
  Discontinued operations                                                               (.14)              (.16)              (.01)
  Gain on disposition of discontinued operations                                                            .07                .01
                                                                                ------------       ------------       ------------
                                                                                $       (.19)      $       (.05)      $        .02
                                                                                ============       ============       ============
Net earnings (loss) per share: - Diluted
  Continuing operations                                                         $       (.05)      $        .03       $        .01
  Discontinued operations                                                               (.14)              (.14)              (.01)
  Gain on disposition of discontinued operations                                                            .06                .01
                                                                                ------------       ------------       ------------
                                                                                $       (.19)      $       (.05)      $        .01
                                                                                ============       ============       ============

Weighted average common and common equivalent shares outstanding:
    Basic                                                                          8,887,000          8,887,000         10,112,000
    Diluted                                                                        8,887,000         10,612,000         11,747,000
</TABLE>

See notes to consolidated financial statements

                                      F-3

<PAGE>
CORE TECHNOLOGIES (PENNSYLVANIA), INC.
- -------------------------------------------------------------------------------
Consolidated Statements of Cash Flows

<TABLE>
<CAPTION>
                                                                                          Year Ended December 31,
                                                                              1997              1996             1995
                                                                          -----------       -----------       -----------
<S>                                                                        <C>               <C>               <C>        
Operations
 Net earnings  (loss)                                                     $(1,644,300)      $  (451,800)      $   151,600

Adjustments to reconcile net earnings (loss) to cash from operations
  Loss from discontinued security systems operation                         1,246,400         1,491,400           114,300
  Gain on disposition of discontinued furnishings operation                                    (650,000)         (100,000)
  Depreciation and amortization                                                73,200            74,100            73,800

Cash provided by (used in) changes in working capital items
  Receivables                                                                 371,400          (444,800)           91,300
  Inventories                                                                (206,200)           48,600            (9,900)
  Other current assets                                                        (98,800)          (10,900)           87,900
  Accounts payable                                                           (160,000)          516,400          (124,000)
  Accrued expenses                                                           (271,800)          188,000           154,500
                                                                          -----------       -----------       -----------

Cash provided (used) by continuing operations                                (690,100)          761,000           439,500


Cash provided by discontinued furnishings operation
  Cash provided by discontinued furnishings operation                         542,100         1,309,100         1,901,300
  Cash used by discontinued security systems operation                       (757,900)       (2,340,600)       (5,128,200)
  Income tax refund                                                                                             1,602,700
                                                                          -----------       -----------       -----------
Cash used by discontinued operations                                         (215,800)       (1,031,500)       (1,624,200)


Financing activities
  Net borrowings (repayments) of debt                                       1,030,200           269,200        (2,515,300)
                                                                          -----------       -----------       -----------
Cash provided (used) by financing activities                                1,030,200           269,200        (2,515,300)

Investing activities
  Expenditures for plant and equipment                                         (7,000)          (14,400)          (18,300)
  Proceeds from sale of discontinued operations                                                                 2,345,700
  Other, net                                                                                                    1,043,100
                                                                          -----------       -----------       -----------

Cash (used) provided by investing activities                                   (7,000)          (14,400)        3,370,500
                                                                          -----------       -----------       -----------

Increase (decrease) in cash                                                   117,300           (15,700)         (329,500)
Cash beginning of period                                                       15,900            31,600           361,100
                                                                          -----------       -----------       -----------

Cash end of period                                                        $   133,200       $    15,900       $    31,600
                                                                          ===========       ===========       ===========
</TABLE>

See notes to consolidated financial statements

                                      F-4

<PAGE>

CORE TECHNOLOGIES (PENNSYLVANIA), INC.
- --------------------------------------------------------------------------------
Consolidated Statements of Stockholders' Deficit

<TABLE>
<CAPTION>

                                                                            
                                         Common stock             Additional          
                                  --------------------------       paid-in         Accumulated        Treasury
                                    Shares         Amount          capital          deficit            stock
- ---------------------------------------------------------------------------------------------------------------
<S>                             <C>                 <C>            <C>           <C>                 <C>      
Balance --December 31, 1994      10,767,326          107,700        7,878,400     (12,036,100)        (420,500)
Net earnings                                                                          151,600
Preferred stock dividend                                              (90,000)
Common stock contribution        (2,000,000)         (20,000)          20,000
Common stock issued                 450,000            4,500           40,500
                               ------------     ------------     ------------    ------------     ------------

Balance --December 31, 1995       9,217,326           92,200        7,848,900     (11,884,500)        (420,500)
Preferred stock dividend                                              (90,000)
Net loss                                                                             (451,800)
                               ------------     ------------     ------------    ------------     ------------

Balance --December 31, 1996       9,217,326           92,200        7,758,900     (12,336,300)        (420,500)
Preferred stock dividend                                              (90,000)
Net loss                                                                           (1,644,300)
                               ------------     ------------     ------------    ------------     ------------

Balance --December 31, 1997       9,217,326     $     92,200     $  7,668,900    $(13,980,600)    $   (420,500)
                               ============     ============     ============    ============     ============
</TABLE>

See notes to consolidated financial statements


                                      F-5
<PAGE>

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.       Summary of Significant Accounting Policies

         DESCRIPTION OF BUSINESS - The Company designs, manufactures and
distributes air filtration units, components and systems which are used in a
variety of industries which require particulate-free, ultra-clean, working
environments, as well as patient isolation devices for hospital and health care
applications.

         PRINCIPLES OF CONSOLIDATION - The consolidated financial statements
include the accounts of Core Technologies (Pennsylvania), Inc. and its domestic,
wholly-owned subsidiaries (the Company). All significant intercompany accounts
and transactions have been eliminated. The furnishings segment of the Company
was disposed of in August 1995 and the security systems segment of the Company
was disposed of in June 1998 and accordingly are reported as discontinued
operations. The Company currently operates in one business segment.

         INVENTORIES are valued at the lower of average cost or market.

         PLANT AND EQUIPMENT are carried at cost and depreciated on a
straight-line basis over the estimated useful lives of the assets (leasehold
improvements - 5 years; machinery and equipment - 3 to 7 years).

         EXCESS OF COST OVER FAIR VALUE OF NET ASSETS OF BUSINESSES ACQUIRED and
other intangibles are amortized on a straight-line basis primarily over 15
years. Assessment of the carrying amount of goodwill and other intangibles is
made when changing facts and circumstances suggest that the carrying value of
goodwill or other assets may be impaired using the forecasted undiscounted cash
flow from the related business activity (including possible proceeds from a sale
of the business). Accumulated amortization at December 31, 1997 and 1996 was
$232,500 and $184,500, respectively.

         TAXES ON INCOME are accounted for using the asset and liability method.
Under this method, deferred income taxes are recognized for the tax consequences
of "temporary differences" by applying enacted statutory tax rates applicable to
future years to differences between the financial statement carrying amounts and
the tax basis of existing assets and liabilities. The effect on deferred taxes
of a change in tax rates is recognized in operations in the period that includes
the enactment date.

         SALES of air filtration products are recognized when product is shipped
and title or risk of loss is transferred. Revenue from installation services is
recognized when performed.

         EARNINGS (LOSS) PER SHARE At December 31, 1997, the Company adopted
Statement of Financial Accounting Standards No. 128, "Earnings per Share, (SFAS
128), which supersedes Accounting Principles Board Opinion No. 15, Earnings Per
Share (APB 15), and requires companies to present basic and diluted earnings per
share (EPS), instead of primary and fully diluted EPS previously required. All
EPS amounts have been restated in accordance with SFAS 128. (See Note 11)

         EPS is computed on net earnings (loss) using the weighted average
number of shares outstanding during each year. On a diluted basis, the weighted
average number of shares outstanding is adjusted to assume the conversion of the
convertible preferred stock and common stock equivalents which would arise from
the exercise of stock options (unless anti-dilutive). 

                                      F-6

<PAGE>

         FINANCIAL INSTRUMENTS, principally accounts receivable, notes
receivable, and accounts payable are carried at cost which approximates fair
value due to the short maturity of these instruments. The Company's debt is
carried at cost which approximates fair value as the debt bears interest at
rates approximating current market rates.

         USE OF ESTIMATES - The preparation of financial statements in
conformity with general accepted accounting principles requires management to
make estimates and assumptions that affect the reported amounts of assets and
liabilities and disclosure of contingent assets and liabilities at the date of
the financial statements and the reported amounts of revenues and expenses
during the reporting period. Actual results could differ from those estimates.

         STOCK OPTIONS - In 1996, the Company adopted Statement of Financial
Accounting Standards No. 123, Accounting for Stock-based Compensation (SFAS
123), which gives companies the option to adopt the fair value method for
expense recognition of employee stock options and stock based awards or to
continue to account for such items using the intrinsic value method as outlined
under Accounting Principles Board Opinion No. 25, Accounting for Stock Issued to
Employees (APB 25) with pro forma disclosures of net income and earnings per
share as if the fair value method had been applied. The Company has elected to
continue to apply APB 25 for stock options and stock based awards to employees
and has disclosed pro forma net earnings (loss) and pro forma net earnings
(loss) per share as if the fair value method had been applied.

         RECLASSIFICATION - Certain reclassifications have been made to prior
year amounts to reflect consistency with 1997 classifications.

2. Discontinued Operations

         Security Systems Segment

         On June 8, 1998, the Company sold substantially all of the assets of
Maris, its security and control system integration and installment business, to
Security Technologies Group, Inc., a privately held New Jersey corporation
(STG). The Company will now focus on the cleanroom products and services
business along with the hospital/healthcare environmental control segment of its
subsidiary Airo Clean, Inc. The decision to sell Maris was based on the
Company's lack of adequate capital to support Maris' operations and its
continuing losses.

         The Company sold substantially all the assets of Maris to STG for
approximately $2.9 million, of which approximately $2.2 million was received at
closing and the remaining $.7 million will be received as certain accounts
receivable are collected. Additionally, the Company anticipates recognizing a
gain on the sale of approximately $400,000 in the second quarter of 1998. In
addition, the purchase price included a contingent payment of up to $500,000
which is based on the performance of Maris' business for the calendar year
ending December 31, 1998. The contingent payment is based upon Maris achieving a
minimum gross margin of 22% and the following three conditions: (1) $200,000, if
gross revenues exceed $13.5 million or a proportional amount from zero to
$200,000 when revenues range between $11.5 and $13.5 million; (2) $200,000, if
gross margins exceed 24% or a proportionate amount from zero to $200,000 when
the gross margin is between 22% and 24%; (3) $100,000, if the bookings exceed
$13.5 million or a proportional amount from zero to $100,000 when the bookings
range between $12.5 and $13.5 million. The contingent payment will be calculated
in January 1999, and if any, will be paid in April 1999.

                                      F-7

<PAGE>

         In late 1997, the Company and its board of directors adopted a formal
plan to sell the assets of Maris and therefore have classified Maris as a
discontinued operation. The following summarizes the Maris operations for the
years-ended December 31, 1997, 1996 and 1995:

<TABLE>
<CAPTION>

                                                           1997                1996                 1995
                                                           ----                ----                 ----
<S>                                                    <C>                 <C>                 <C>         
Revenues                                               $ 10,550,900        $ 10,362,900        $ 12,987,100
Cost of goods sold                                        8,314,000           9,053,200           9,982,100
                                                       ------------        ------------        ------------
    Gross profit                                          2,236,900           1,309,700           3,005,000
Expenses
    Sales and marketing                                   1,183,100           1,106,700           1,175,000
    General and administrative                            1,358,900           1,427,600           1,657,500
    Reserve for losses on discontinued operation            358,000
    Interest                                                583,300             522,800             646,500
    Tax benefit                                                                (256,000)           (359,700)
                                                       ------------        ------------        ------------
                                                          3,483,300           2,801,100           3,119,300
                                                       ------------        ------------        ------------
Loss from discontinued operation                       $ (1,246,400)       $ (1,491,400)       $   (114,300)
                                                       ============        ============        ============
</TABLE>

         The assets and liabilities of the discontinued operation have been
reclassified in the accompanying consolidated financial statements to separately
identify them as net assets of discontinued operation. These net assets consist
of net working capital, net plant and equipment, other assets, less related
liabilities as follows for the period ended December 31, 1997 and 1996:
<TABLE>
<CAPTION>
                                                                                      December 31,     December 31,
Assets                                                                                    1997             1996
                                                                                          ----             ----
<S>                                                                                    <C>              <C>       
     Accounts receivable                                                               $2,261,300       $2,879,100
     Costs and estimated earnings in excess of billings on uncompleted contracts        1,179,000          511,000
     Inventories                                                                          339,600          325,800
     Other current assets                                                                 211,700          322,700
     Net plant and equipment                                                              194,200          356,500
     Other assets                                                                          22,700           18,400
                                                                                       ----------       ----------
         Total assets                                                                   4,208,500        4,413,500
                                                                                       ----------       ----------
Liabilities
     Accounts payable                                                                   2,220,000        2,123,400
     Accrued expenses                                                                     731,500          582,900
     Billings in excess of costs and estimated earnings on uncompleted contracts          491,100          384,900
     Debt                                                                                 310,100          310,100
                                                                                       ----------       ----------
         Total liabilities                                                              3,752,700        3,401,300
                                                                                       ----------       ----------
Net assets of discontinued operation                                                   $  455,800       $1,012,200
                                                                                       ==========       ==========
</TABLE>
                                       F-8
<PAGE>


Furnishings Segment

         On August 25, 1995, the Company sold the assets of its furnishings
segment. The sales price was comprised of three components determined based on
the net assets sold to The CenterCore Group, Inc., as follows: $2,345,700 in
cash, $1,695,500 in installment payments to be paid in 1996 and a $1,962,300
Subordinate Note, for an aggregate sales price of $6,003,500. The installment
payments in 1996 were reduced by $847,300 representing the amount of accounts
receivable not collected 120 days after closing plus a collection fee of
$50,000. The Subordinate Note bears interest at the rate of 8% per annum,
commencing on August 25, 1996. The principal amount of the Subordinate Note will
be amortized on a seven-year level schedule with semi-annual payments of
$140,000, and with a balloon payment due August 25, 2000. Interest and principal
payments commenced February 25, 1997 and continue semi-annually thereafter until
maturity. The Canadian furnishings business was sold to Safeguard Scientifics,
Inc. (Note 6) who subsequently sold the business to the Canadian management for
$100,000 in cash and up to $100,000 in payments based on net annual sales
through the year ending December 31, 2000. Proceeds of the earn-out from the
Canadian sale will be remitted to the Company. A total of $18,700 has been
remitted through December 31, 1997.

         During the year ended December 31, 1996 and 1995, the Company recorded
$650,000 and $100,000 respectively, in gains on disposition of discontinued
operations, primarily related to certain amounts received in excess of
anticipated amounts at the date of disposition.

3.       Inventories
          (In thousands)                               1997             1996
                                                       ----             ----
          Raw                                          $528             $300
          materials.........................
          Work in progress..................                               3
          Finished goods....................                              18
                                                    ---------         ---------
                                                       $528             $321
                                                    =========         =========
4.       Accrued Expenses
          (In thousands)                               1997              1996
                                                       ----              ----
          Commissions.......................            $17              $45
          Salaries..........................             85              184
          Sales and use                                  35               67
          tax...............................
          Customer deposits.................             70               66
          Other.............................             81              198
                                                    ---------         ---------
                                                       $288             $560
                                                    =========         =========
5.       Commitments and Contingencies

         Maris is a named party to certain pending lawsuits relating to certain
of Maris' security system installation projects. Maris also believes that it has
certain claims with respect to other security systems installation projects for
which it has not filed lawsuits. In connection with Maris' settlement with its
surety companies in 1995, the surety companies have assumed all claims and all
liabilities in respect to these law suits, and the surety companies have agreed
to release Maris from its indemnity obligations to them.

         The Company and its subsidiaries are involved in various claims and
legal actions arising in the ordinary course of business. In the opinion of
management, the ultimate disposition of these matters will not have a material
adverse effect on the Company's results of operations, liquidity, or
consolidated financial position.

                                       F-9
<PAGE>

6.       Related Party Transactions

         Safeguard Scientifics, Inc. (Safeguard) owns 25% of the outstanding
common stock of the Company at December 31, 1997 and all of the redeemable
convertible preferred stock. In 1995, Safeguard contributed 2 million common
shares to the Company and sold 2.5 million common shares to the management of
the Company and provided bank guarantees of $4.5 million in the form of a letter
of credit through September 30, 2000 (see note 7).

         During 1994 Safeguard purchased 15,000 shares of redeemable convertible
preferred stock for $1.5 million. The preferred stock has a stated value of $100
per share and entitles holders to quarterly dividends of $1.50 per share
commencing on July 1, 1994. Unpaid undeclared cumulative dividends were
$315,000, $225,000 and $135,000 as of December 31, 1997, 1996 and 1995,
respectively. The Company may redeem all outstanding preferred stock any time
after June 1, 1995 at the stated value plus any unpaid dividends. However, the
preferred stock must be redeemed prior to June 1, 2001. The preferred stock is
convertible at any time into shares of the Company common stock at one share for
each dollar of stated value plus unpaid dividends. The preferred stock has
voting privileges equivalent to the shares of common stock into which the
preferred stock converts. The Company has authorized 1,000,000 shares of
preferred stock.

7.       Debt

         Debt consists of the following:

(In thousands)                                                 1997      1996
                                                               ----      ----

Revolving secured bank facility (9.5% at December 31, 1997)   $5,983    $4,953
Safeguard note, subordinated to bank                             887       887
                                                            ---------  --------
                                                              $6,870    $5,840
                                                            =========  ========

         In March 1997, the Company terminated its credit facility with its
previous lender and successfully negotiated a new credit agreement with its new
lender which provides a $6.0 million credit facility due on March 14, 2000. All
amounts due under the Company's previous credit facility were repaid with
amounts from the new facility. This credit facility is secured by guarantees of
$4.5 million in the form of a letter of credit from Safeguard through September
30, 2000 and substantially all of the assets of the Company. Safeguard is not
contractually obligated to satisfy any of the Company's obligations with the
exception of the $4.5 million letter of credit used as collateral for the
Company's credit facility. Borrowings bear interest at prime plus 1% and the
Company pays a commitment fee of 1/2% on the unused portion of the credit
facility. The agreement limits borrowings under the credit facility, in excess
of the $4.5 million guranteed in the form of the letter of credit, to certain
levels of receivables and inventory and requires the maintenance of a minimum
debt service coverage ratio and limits the amounts available for capital
expenditures. The agreement prohibits the payment of cash dividends.

         On December 29, 1997 the credit facility was amended to increase the
availability up to an additional $395,000 through February 27, 1998 and for the
period beginning February 28, 1998 through August 27, 1998, by $195,000. As of
June 29, 1998, outstanding borrowings under the credit facility were $5.2
million with less than $100,000 of availability. The Company was in default of
its debt service ratio loan covenant as of December 31, 1997, but received a
waiver 

                                      F-10
<PAGE>

from its lender on July 20, 1998 and the financial covenants were revised
to reflect the Company's continuing operations.

         In 1995, Safeguard advanced $887,000 to the Company to cover costs of
the sale of the furnishings business and payments to Maris' sureties. The
Company has issued to Safeguard a Subordinate Note to evidence this obligation.
The Sudordinate Note accrues interest at 6% per annum. Interest and principal
are due December 31, 2000 and the Subordinate Note is subordinate to all the
Company's obligations to its other lenders. Additionally, if the Company's
performance will allow the canceling of the Safeguard letter of credit prior to
the maturity of the Subordinate Note, Safeguard has agreed to forgive all of the
note principal and accrued interest.

         During 1997 and 1996, the Company borrowed a maximum of $6.0 and $5.6
million, respectively, under its credit facility. The weighted average interest
rate was 11.0% and 11.0% in 1997 and 1996, respectively.

         Interest paid for continuing operations in 1997, 1996 and 1995 was
$89,200, $46,900 and $45,600, respectively. Interest paid for discontinued
operations in 1997, 1996 and 1995 was $583,300, $522,800 and $646,500,
respectively.

8.       Operating Leases

         The Company leases its office facilities and certain equipment under
operating leases ranging from two to four years. Future minimum rental payments
under operating leases that have initial or remaining noncancelable lease terms
in excess of one year are as follows:

(In thousands)
1998                                $ 263
1999                                  162
2000                                  112
2001                                  112
                                    -----
                                    $ 649
                                    =====

         Annual rental expense in 1997, 1996 and 1995 was $280,000, $245,500 and
$220,200, respectively.

                                      F-11

<PAGE>



9.       Major Customers

         The Company's air filtration products segment had two customers during
the year ended December 31, 1997 that generated 20% of sales and one of these
customers generated 9%, 10% and 18% of air filtration product sales in 1997,
1996 and 1995, respectively. Foreign customers amounted to 28%, 15% and 21% of
total net sales in 1997, 1996 and 1995, respectively.

10.      Income Taxes

         The provision (benefit) for income taxes is comprised of the following
(in thousands):
                                                 1997     1996      1995
                                                 ----     ----      ----
 Current                                        $ (20)   $ 331     $ 139
                                                =====    =====     ===== 
State tax provision included in above           $ (20)   $  75


A reconciliation of reported income tax expense to the amount of income tax
expense that would result from applying federal statutory tax rates to income
(loss) from continuing operations before provision for income taxes is as
follows (in thousands):

                                                          1997     1996    1995
                                                          ----     ----    ----
 Statutory federal income tax (benefit)                  $(142)    $245    $104
 State taxes net of federal tax benefit                    (20)      75
 Limitation on loss benefit due to valuation allowance     142
 Other, net                                                          11      35
                                                         ------   ------  -----
                                                         $ (20)    $331    $139
                                                         ======   ======  =====

The tax effects of temporary differences that give rise to significant portions
of the deferred tax assets are presented below (in thousands):

                                                     1997         1996
                                                     ----         ----
Deferred tax assets:
  Net operating loss carryforward                  $ 4,080      $ 2,618
  Restructuring reserves                               334          334
  Receivables allowance                                 34           48
  Inventory reserves                                    94           62
  Other reserves and tax capitalized costs             199          156
  Alternative minimum tax credit                        97           97
                                                   -------      -------
    Total gross deferred assets                    $ 4,838      $ 3,315
    Less valuation allowance                        (4,838)      (3,315)
                                                   -------      -------
    Net deferred tax assets                        $     -      $     -
                                                   =======      =======


The Company has recorded a valuation allowance to reflect the estimated amount
of deferred tax assets which may not be realized.

         As of December 31, 1997, the Company had net operating loss
carryforwards for U.S. income tax purposes of approximately $12 million that may
be offset against future taxable income. If not used, the carryforwards will
expire as follows (in thousands):

                                      F-12
<PAGE>

      Year of                Net Operating
     Expiration            Loss carryforward
     ----------            -----------------
       2009                     $ 5,500
       2010                         500
       2011                       4,600
       2012                       1,400
                                -------
                                $12,000
                                =======

Total income taxes paid (refunded) in 1997, 1996 and 1995, were $55,000, $0 and
($1,602,700), respectively.

11.      Earnings Per Share

         The following is a reconciliation of the numerator and denominators of
the basic and diluted EPS computations:

<TABLE>
<CAPTION>

- -------------------------------------------------------------------------------------------
Year ended December 31                            1997             1996            1995
- -------------------------------------------------------------------------------------------
<S>                                           <C>              <C>             <C>        
Net earnings (loss)                           $ (1,644,300)    $ (451,800)     $   151,600
Basic shares                                     8,887,000      8,887,000       10,112,000
     Effect of dilutive options
     Effect of dilutive preferred stock                 -       1,725,000        1,635,000
                                              ------------     -----------      ----------
Diluted shares                                   8,887,000     10,612,000       11,747,000
                                              ------------     -----------      ----------
Net earnings (loss) per share
     Basic                                           (0.19)         (0.05)            0.02
     Diluted                                         (0.19)         (0.05)            0.01

</TABLE>

         Currently exercisable options to purchase approximately 547,000,
338,900 and 236,800 shares of Common Stock at an average price of $0.47, $0.58
and $0.85 per share at December 31, 1997, 1996 and 1995, respectively, were
anti-dilutive and are not included in the calculations of diluted EPS because
the options' exercise price was greater than the average market price of the
common shares for each respective period. Shares issuable upon conversion of the
Company's Convertible Preferred Stock (see note 6) at December 31, 1997 were
anti-dilutive and are not included in the calculations of diluted EPS.

12.      Stock-Based Compensation

         Options may be granted to Company employees and directors under various
option plans. Generally, outstanding options vest over periods not exceeding
four years after the date of grant, and expire seven years after date of grant.
To the extent allowable, all grants are incentive stock options. All options
granted under the plans to date have been at prices which have been equal to the
fair market value at the time of grant. During 1997, the Company increased the
number of options available for grant by 500,000 under the 1993 Plan. At
December 31, 1997, the Company reserved approximately 1.9 million shares of
common stock for possible future issuance under its stock option plans.

         Option activity under the Company's plan is summarized below:

                                      F-13
<PAGE>

<TABLE>
<CAPTION>

                                              1997                      1996                         1995
                                    ------------------------  -------------------------    ------------------------
                                                 Weighted                   Weighted                    Weighted
                                                  Average                   Average                      Average
                                                 Exercise                   Exercise                    Exercise
                                      Shares       Price        Shares       Price           Shares       Price
                                    ------------------------  -------------------------    ------------------------
<S>                                   <C>             <C>         <C>            <C>           <C>           <C>  
Outstanding at beginning of year      1,350,000       $0.38       930,500        $0.51         615,875       $0.91
Options granted                         231,500        0.20       569,500         0.28         705,000        0.38
Options canceled/expired               (188,000)       0.28      (150,000)        0.70        (390,375)       0.91
                                    -----------               -----------                  -----------
Outstanding at end of year            1,393,500       $0.35     1,350,000        $0.38         930,500       $0.51
                                    ===========               ===========                  ===========

Options exercisable at year-end         547,000                   338,875                      236,833
Shares available for future grant       551,000                    99,500                      566,000

</TABLE>


         The following summarizes information about the Company's stock options
outstanding at December 31, 1997:
<TABLE>
<CAPTION>

                                        Options Outstanding                           Options Exercisable
                        ----------------------------------------------------     ------------------------------
                                          Weighted Avg.
      Range of             Number           Remaining                              Number
      Exercise           Outstanding    Contractual Life      Weighted Avg.      Exercisable    Weighted Avg.
       Prices            at 12/31/97       (in years)         Exercise Price     at 12/31/97    Exercise Price
- ----------------------  -------------- --------------------   --------------     -----------    ---------------
<S>     <C>                   <C>              <C>                <C>                 <C>             <C>  
        $0.63                 104,000          0.9                $0.63               104,000         $0.63
    $0.84 - $0.94              89,000          2.3                $0.86                89,000         $0.86
        $0.38                 447,000          4.7                $0.38               223,500         $0.38
    $0.25 - $0.45             522,000          5.8                $0.26               130,500         $0.26
        $0.20                 231,500          6.7                $0.20
                        -------------                                           -------------
    $0.20 - $0.94           1,393,500          5.0                $0.35               547,000         $0.47
                        =============                                           =============
</TABLE>
         The Company applies APB 25 and related interpretations in accounting
for stock option plans. Had compensation cost been recognized consistent with
SFAS 123, the Company's consolidated net earnings (loss) and earnings (loss) per
share would have been reduced to the pro forma amounts indicated below:
<TABLE>
<CAPTION>
                                                               1997               1996
                                                         -----------------  ----------------
<S>                                        <C>            <C>                   <C>  
Consolidated net earnings (loss)           As reported    $ (1,644,300)        $ (451,800)
                                           Pro forma      $ (1,717,465)        $ (511,309)

Earnings (loss) per share - Basic          As reported       $ (0.19)           $ (0.05)
                                           Pro forma         $ (0.19)           $ (0.06)

Earnings (loss) per share - Diluted        As reported       $ (0.19)           $ (0.05)
                                           Pro forma         $ (0.19)           $ (0.06)
</TABLE>

         The per share weighted-average fair value of stock options issued by
the Company during 1997 and 1996 was $0.20 and $0.26, respectively, on the date
of grant.

                                      F-14
<PAGE>

         The following assumptions were used by the Company to determine the
fair value of stock options granted using the Black-Scholes option-pricing
model:
                                           Assumptions
                                    --------------------------
Dividend yield                                 0%
Expected volatility                           150%
Average expected option life                 7 years
Risk-free interest rate                   5.8% to 6.9%

         Pro forma consolidated net earnings (loss) reflects only options
granted in 1997, 1996 and 1995. Therefore, the full impact of calculating
compensation cost for stock options under SFAS 123 is not reflected in pro forma
consolidated net earnings (loss) amounts presented above because compensation
cost is reflected over an options' vesting period and compensation cost for
options granted prior to January 1, 1995 is not considered.

13.      Retirement Plans

         The Company has a defined contribution plan which covers all employees.
The plan provides for a limited Company match of employee contributions. The
Company contributed $0, $27,400 and $2,100 in 1997, 1996 and 1995, respectively.

14.      Liquidity and Capital Resources

         The Company believes that the combination of Safeguard's letter of
credit and the working capital assets of the ongoing business will be sufficient
to support the borrowing under the credit facility. As of June 29, 1998,
outstanding borrowings under this facility were approximately $5.2 million with
less than $100,000 of availability. See note 7 for terms of credit facility.

         As a result of discontinuing the furnishings and security systems
segments, the Company has emerged as a significantly downsized and restructured
company. Credit financing is available for limited working capital requirements.
If these sources of funds prove to be inadequate or in the case of credit
financing, unavailable, then the Company will have to seek additional funds from
other sources to continue operations. There can be no assurance that new sources
of funds, if required, will be available. However, based on the Company's
projections of operations and borrowing availability under the credit facility
the Company believes it will be able to continue to operate in this restructured
mode and continues to focus on management of working capital and controlling
expenses to minimize the need to utilize availability under the credit facility.

                                      F-15

<PAGE>

                     CORE TECHNOLOGIES (PENNSYLVANIA), INC.
                 SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
<TABLE>
<CAPTION>

                                                Balance        Additions
                                               Beginning       Charged to                                 Balance
Description                                     of Year        Operations    Deductions      Other       End of Year
- -----------                                     -------        ----------    ----------      -----       -----------
                                                                               (1)
<S>                                          <C>             <C>             <C>             <C>       <C>
Allowance for doubtful accounts
   Year ended December 31, 1997              $   15,000       $   5,500      $  (2,500)      $          $   18,000    

   Year ended December 31, 1996                   9,000          14,400         (8,400)                     15,000    

   Year ended December 31, 1995                  14,800                         (5,800)                      9,000    

</TABLE>

      (1)  Net write-offs.

      Does not reflect the discontinued security systems and furnishings
segments.

                                      F-16
 
<PAGE>

                                  EXHIBIT INDEX

         The following is a list of exhibits required by Item 601 of Regulation
S-K to be filed as part of this Report. Where so indicated by footnote, exhibits
which were previously filed are incorporated by reference. For exhibits
incorporated by reference, the location of the exhibit in the previous filing is
indicated in parentheses. The page numbers listed refer to the page numbers
where such exhibits are located using the sequential numbering system specified
by Rules 0-3 and 403.

<TABLE>
<CAPTION>

                                                                                                  Sequentially
                                                                                                    Numbered
Exhibit No.        Exhibit                                                                            Page
- -----------        -------                                                                            ----
<S>               <C>                                                                               <C> 
3.1                Amended and Restated Certificate of Incorporation (12) (Exhibit 3.1)

3.2                By-Laws (1) (Exhibit 3.2)

4.1                Reference is made to Exhibit 3.1 for the rights and preferences of the
                   Company's Series A Redeemable Convertible Preferred Stock (1) (Exhibit
                   4.1)

4.2                Form of certificate representing the shares of Common Stock (1) (Exhibit
                   4.2)

4.3**              Amended and restated 1984 Stock Option Plan of CenterCore, Inc.(3)
                   (Exhibit 4.3)

4.4**              Stock Option Plan for Non-Employee Directors (2) (Exhibit 10.18)

4.5**              1993 Stock Option Plan (7)(Exhibit 4.1)

4.6                Certificate of Designation for Series A Preferred Stock (7)(Exhibit 4.2)

10.1               Loan and Security Agreement dated March 14, 1997 by and among Core
                   Technologies (Pennsylvania), Inc., Maris Equipment Co., Inc. and Airo
                   Clean, Inc. (Borrowers) and FINOVA Capital Corporation (Lender)(12)

10.2               $887,000 Subordinated Note from Core Technologies, Inc. to Safeguard
                   Scientifics (Delaware), Inc. dated August 25, 1995(12)

10.3               Subordination Agreement dated March 14, 1997 between Safeguard
                   Scientifics (Delaware), Inc. and FINOVA Capital Corporation, and
                   acknowledged by Core Technologies (Pennsylvania), Inc. (12)

10.4               Assignment and Assumption of Lease Agreement for 212 Phillips Road,
                   Lionville, PA dated as of February 1, 1993 between Airo Clean
                   Engineering, Inc. and Airo Clean Acquisition Corp.(3)(Exhibit 10.9)

</TABLE>

<PAGE>

<TABLE>
<CAPTION>

                                                                                                  Sequentially
                                                                                                    Numbered
Exhibit No.        Exhibit                                                                            Page
- -----------        -------                                                                            ----
<S>               <C>                                                                               <C> 

10.5               Lease Agreement between CenterCore, Inc. and The Nichols Company dated
                   September 29, 1993 for 110 Summit Drive, Exton, PA and Landlord's Waiver
                   dated February 9, 1994(6)(Exhibit 10.10)

10.6               Lease Agreement between Maris Equipment Company and Chesco
                   Nichols Company dated July 23, 1986 for 110C Summit Drive,
                   Exton, PA and amendments thereto(6)(Exhibit 10.11)

10.7               Fourth Amendment to Lease (11)(Exhibit 10.8)

10.8**             CenterCore, Inc. 401(k) Tax Deferred Retirement and Incentive
                   Plan(3)(Exhibit 10.16)

10.9**             CenterCore, Inc. 401(k) Tax Deferred Retirement and Incentive Plan,
                   Amendment 2-93(6)(Exhibit 10.13)

10.10**            Third Amendment to the CenterCore, Inc. 401(k) Tax Deferred Retirement
                   and Incentive Plan effective as of June 1, 1994(7)(Exhibit 10.1)

10.11              Asset Purchase Agreement dated February 1, 1993 between Airo Clean
                   Acquisition Corp. and Airo Clean Engineering, Inc. and Michael H.
                   Pelosi, III, Joseph Pelosi and Michael H. Pelosi, Jr. (schedules and
                   exhibits omitted)(3)(Exhibit 10.27)

10.12**            Employment  Agreement dated February 1, 1993 between Airo Clean, Inc.
                   and Michael H. Pelosi, III(9)(Exhibit 10.23)

10.13              Exclusive License Agreement between Michael H. Pelosi III and Airo
                   Clean, Inc. dated as of February 1, 1993(3)(Exhibit 10.28)

10.14              Asset Purchase Agreement dated September 15, 1993 among MEC Acquisition,
                   Inc., CenterCore, Inc., Maris Equipment Company and JWP Inc.(4)(Exhibit
                   2.1)

10.15              Agreement and Release dated June 19, 1995 among CenterCore,
                   Inc., Maris Equipment Company, Inc., Safeguard Scientifics,
                   Inc., EMCOR Group, Inc., JWP/MEC Corp., and Seaboard Surety
                   Company(9)(Exhibit 10.27)

10.16              Agreement dated June 16, 1995 among CenterCore, Inc., Maris Equipment
                   Company, Inc. and Insurance Company of North America(9)(Exhibit 10.28)

10.17              Agreement dated June 19, 1995 among CenterCore, Inc., Maris Equipment
                   Company, Inc. and Liberty Mutual Insurance Company(9)(Exhibit 10.29)

10.18              $1.1 Million Note to Safeguard Scientifics, Inc. dated September 22,
                   1993(5)(Exhibit 10.3)

10.19              Asset Purchase Agreement dated May 26, 1995 among 
</TABLE>

                                       2

<PAGE>

<TABLE>
<CAPTION>

                                                                                                  Sequentially
                                                                                                    Numbered
Exhibit No.        Exhibit                                                                            Page
- -----------        -------                                                                            ----
<S>               <C>                                                                               <C> 
                   CenterCore, Inc.,Corel Corporate Seating, Inc. and The CenterCore 
                   Group, Inc.(8)(Exhibit 2.1)

10.20              Amendment No. 1 dated as of June 30, 1995 to Asset Purchase Agreement
                   (10)(Exhibit 2.2)

10.21              Option Shares Escrow Agreement dated September 29, 1995, by and between
                   George Mitchell, Frederick Franks III, Philip Donnelly and the
                   Company(11)(Exhibit 10.46)

10.22              Promissory Note dated September 29, 1995 from George Mitchell
                   to Safeguard in the principal amount of $83,333(11)(Exhibit
                   10.47)

10.23              Promissory Note dated September 29, 1995 from Frederick
                   Franks III to Safeguard in the principal amount of
                   $83,333(11)(Exhibit 10.48)

10.24              Promissory Note dated September 29, 1995 from Philip Donnolly
                   to Safeguard in the principal amount of $83,333(11)(Exhibit
                   10.49)

10.25              Asset  Purchase  and Sale  Agreement  dated  June 8, 1998 by and between
                   Maris  Equipment  Company,  Inc.,  as Seller  and  Security  Technologies
                   Group, Inc., as Buyer, effective June 1, 1998 (13) (Exhibit 2.1)

10.26              Interim Services Agreement dated June 8, 1998, by and among Maris
                   Equipment Company, Inc., Core Technologies (Pennsylvania), Inc. and
                   Security Technologies Group, Inc. (13) (Exhibit 2.2)

11                 Computation of Per Share Earnings (Loss)*

21                 List of Subsidiaries*

23                 Consent of Independent Auditors*

27                 Financial Data Schedule
</TABLE>


                                       3
<PAGE>

<TABLE>
<CAPTION>

- ----------------
<S>     <C>   
*        Filed herewith
**       These exhibits relate to compensatory plans, contracts or arrangements
         in which directors and/or executive officers of the registrant may
         participate.
(1)      Filed on April 14, 1988 as an exhibit to Amendment  No. 2 to the  Registration  Statement on Form S-1 (No.
         33-18974) and incorporated herein by reference.
(2)      Filed on April 2, 1990 as an exhibit to Annual Report on Form 10-K (No.
         000-17577) and incorporated herein by reference.
(3)      Filed on March 31, 1993 as an exhibit to Annual report on Form 10-K
         (No. 000-17577) and incorporated herein by reference.
(4)      Filed on October 7, 1993 as an exhibit to Form 8-K (No. 000-17577) and
         incorporated herein by reference. (5) Filed on November 15, 1993 as an exhibit
         to Quarterly Report on Form 10-Q (No. 000-17577) and
         incorporated herein by reference.
(6)      Filed as an  exhibit to Annual  Report on Form 10-K for the  fiscal  year  ended  December  31,  1993 (No.
         000-17577) and incorporated herein by reference.
(7)      Filed as an  exhibit to  Quarterly  Report on Form 10-Q for the fiscal  quarter  ended June 30,  1994 (No.
         000-17577) and incorporated herein by reference.
(8)      Filed as an exhibit to  Quarterly  Report on Form 10-Q for the fiscal  quarter  ended  September  30, 1994
         (No. 000-17577) and incorporated herein by reference.
(9)      Filed as an  exhibit to Annual  Report on Form 10-K for the  fiscal  year  ended  December  31,  1994 (No.
         000-17577) and incorporated herein by reference.
(10)     Filed  on  August  25,  1995 as an  exhibit  to Form  8-K  (No.  000-17577)  and  incorporated  herein  by
         reference.
(11)     Filed as an  exhibit to Annual  Report on Form 10-K for the  fiscal  year  ended  December  31,  1995 (No.
         000-17577) and incorporated herein by reference.
(12)     Filed as an  exhibit to Annual  Report on Form 10-K for the fiscal  year  ended  December  31,  1996 (No.
         000-17577) and incorporated herein by reference.
(13)     Filed on June 30, 1998 as an exhibit to Form 8-K (No. 000-17577) and incorporated herein by reference.

</TABLE>

                                       4



<PAGE>
                                                                   EXHIBIT 11


                     CORE TECHNOLOGIES (PENNSYLVANIA), INC.
                    Computation of Per Share Earnings (Loss)
<TABLE>
<CAPTION>

                                  Basic                           1997             1996              1995
                                  -----                           ----             ----              ----

Earnings (Loss)
<S>                                                          <C>               <C>               <C>         
   Continuing operations                                     $   (397,900)     $    389,600      $    165,900
   Loss from discontinued operations                           (1,246,400)       (1,491,400)         (114,300)
   Gain (loss) on disposition of discontinued operations                            650,000           100,000
                                                             ------------      ------------      ------------
Net earnings (loss)                                          $ (1,644,300)     $   (451,800)     $    151,600
                                                             ============      ============      ============

Common shares outstanding:
   Weighted average common shares outstanding                   8,887,000         8,887,000        10,112,000
                                                             ============      ============      ============

Earnings (loss) per common share:
   Continuing operations                                     $       (.05)     $        .04      $        .02
   Loss from discontinued operations                                 (.14)             (.16)             (.01)
   Gain (loss) on disposition of discontinued operations                       $        .07      $        .01
                                                             ------------      ------------      ------------
Earnings (loss) per common share                             $       (.19)     $       (.05)     $        .02
                                                             ============      ============      ============

                                 Diluted                         1997               1996              1995
                                 -------                         ----               ----              ----
Earnings (Loss)

   Continuing operations                                     $   (397,900)     $    389,600      $    165,900
   Loss from discontinued operations                           (1,246,400)       (1,491,400)         (114,300)
   Gain (loss) on disposition of discontinued operations                            650,000           100,000
                                                             ------------      ------------      ------------
Net earnings (loss)                                          $ (1,644,300)     $   (451,800)     $    151,600
                                                             ============      ============      ============

Common and common equivalent shares outstanding:
   Weighted average common shares outstanding                   8,887,000         8,887,000        10,112,000
   Assumed conversion of convertible preferred stock                              1,725,000         1,635,000
                                                             ------------      ------------      ------------
   Weighted average common shares outstanding                   8,887,000        10,612,000        11,747,000
                                                             ============      ============      ============

Earnings (loss) per common share:
   Continuing operations                                     $       (.05)     $        .03      $        .01
   Loss from discontinued operations                                 (.14)             (.14)             (.01)
   Gain (loss) on disposition of discontinued operations                                .06               .01
                                                             ------------      ------------      ------------
Earnings (loss) per common share                             $       (.19)     $       (.05)     $        .01
                                                             ============      ============      ============
</TABLE>



<PAGE>


                                                                      Exhibit 21


             SUBSIDIARIES OF CORE TECHNOLOGIES (PENNSYLVANIA), INC.


         Exclusive of inactive subsidiaries and companies in which Registrant
holds a minority interest, Registrant as of June 24, 1998 had the following
subsidiaries:


                                                   Place of
       Name                                        Incorporation
       ----                                        -------------

Airo Clean, Inc.                                   Delaware


Maris Equipment Company, Inc.                      Delaware








<PAGE>

                                                                      EXHIBIT 23
                                                                      ----------


Consent of Independent Auditors
- -------------------------------


The Board of Directors and Stockholders
Core Technologies (Pennsylvania), Inc.:

We consent to incorporation by reference in the registration statements (No's.
33-25536 and 33-57972) on Form S-8 of Core Technologies (Pennsylvania), Inc. of
our report dated March 6, 1998, except as to note 2 which is as of June 8, 1998,
and the second paragraph of note 7 which is as of July 20, 1998, relating to the
consolidated balance sheets of Core Technologies (Pennsylvania), Inc. and
subsidiaries as of December 31, 1997 and 1996, and the related consolidated
statements of operations, stockholders' deficit, and cash flows and related
financial statement schedule for each of the years in the three-year period
ended December 31, 1997, which report appears in the December 31, 1997 annual
report on Form 10-K of Core Technologies (Pennsylvania), Inc.



/s/ KPMG Peat Marwick LLP
- -------------------------

Philadelphia, Pennsylvania
July 22, 1998



<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AS OF DECEMBER 31, 1997 AND THE CONSOLIDATED
STATEMENT OF OPERATIONS FOR THE TWELEVE MONTHS ENDED DECEMBER 31, 1997 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                         133,200
<SECURITIES>                                         0
<RECEIVABLES>                                  939,000
<ALLOWANCES>                                    18,000
<INVENTORY>                                    527,500
<CURRENT-ASSETS>                             1,972,600
<PP&E>                                         123,900
<DEPRECIATION>                                  94,500
<TOTAL-ASSETS>                               4,179,800
<CURRENT-LIABILITIES>                        1,153,500
<BONDS>                                              0
                        1,815,000
                                          0
<COMMON>                                        92,200
<OTHER-SE>                                 (6,640,000)
<TOTAL-LIABILITY-AND-EQUITY>                 4,179,800
<SALES>                                      5,120,500
<TOTAL-REVENUES>                             5,120,500
<CGS>                                        3,944,100
<TOTAL-COSTS>                                3,944,100
<OTHER-EXPENSES>                             1,499,800
<LOSS-PROVISION>                                 5,500
<INTEREST-EXPENSE>                            (89,200)
<INCOME-PRETAX>                              (418,100)
<INCOME-TAX>                                  (20,200)
<INCOME-CONTINUING>                          (397,900)
<DISCONTINUED>                             (1,246,400)
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                               (1,644,300)
<EPS-PRIMARY>                                    (.19)
<EPS-DILUTED>                                    (.19)
        


</TABLE>


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