ROPER INDUSTRIES INC /DE/
8-K, 1996-06-14
PUMPS & PUMPING EQUIPMENT
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<PAGE>
 
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D. C. 20549


                                    FORM 8-K


                                 CURRENT REPORT
                        Pursuant To Section 13 Or 15(d)
                     Of The Securities Exchange Act Of 1934


Date of Report (Date of earliest event reported) May 31, 1996


                            ROPER INDUSTRIES, INC.
- ----------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)



     Delaware                         0-19818             51-0263969
- -----------------------------------------------------------------------
(State or other jurisdiction        (Commission        (I.R.S. Employer
of incorporation or organization)   File Number)      Identification No.)



     160 Ben Burton Road,        Bogart, Georgia             30622
- -----------------------------------------------------------------------
                   (Address of principal executive offices)



                                 (706)369-7170
- -----------------------------------------------------------------------------
              (Registrant's telephone number, including area code)
<PAGE>
 
ITEM 2.  ACQUISITION OR DISPOSITION OF ASSETS

     Following the execution of a Stock Purchase Agreement on May 16, 1996, the
Company completed on May 31, 1996, the acquisition of all of the outstanding
capital stock of Gatan International, Inc. (collectively with its subsidiaries,
"Gatan"), a California corporation whose principal offices are located in
Pleasanton, California, and which is engaged in the business of manufacturing
and selling domestically and in international markets instruments and software
used to enhance and extend the operation and performance of electron and
scanning probe microscopes.  The purchase price of $50,342,632 was determined as
a result of arms-length negotiations among the Company and the sellers of the
Gatan stock ("Gatan Sellers").  $16,681,334 and $3,875,043 of the purchase price
was paid at the closing, respectively, to (i)retire Gatan's long-term debt
(including redemption of the lender's associated capital appreciation rights as
a result of the acquisition) and (ii)extinguish certain Gatan obligations to two
of the Gatan Sellers and all unexcercised Gatan stock options held by its
employees.  Approximately $5,000,000 of the purchase price was delivered by the
Gatan Sellers to an escrow agent pursuant to an escrow agreement entered into
for the purpose of securing certain of their indemnification obligations
contained in the Stock Purchase Agreement.  The purchase price was financed
under a credit agreement dated May 8, 1996 between the Company and NationsBank,
N.A. (South), as initial lender and as agent.

     The Gatan Sellers were as follows:

             Morgenthaler Venture Partners III
             G. Rex Swann
             Peter R. Swann
             Ondrej Krivanek
             William E. Offenberg
             Stuart M. Lindsey
             Tianwei Jing

     There were no material relationships between any of the Gatan Sellers and
the Company or any of its affiliates, directors, officers, or associates of any
such director or officer.

     The Company intends that Gatan will continue in the business of
manufacturing and selling products which enhance and extend the operation and
performance of electron and scanning probe microscopes.
<PAGE>
 
ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS

(A)  FINANCIAL STATEMENTS OF BUSINESS ACQUIRED

     Financial statements of Gatan required to be reported because of its
     acquisition by the Company are not presently available and will be provided
     subsequently in an amendment to this Report on Form 8-K on or before August
     12, 1996.

(B)  PRO FORMA CONDENSED FINANCIAL INFORMATION

     Pro forma financial information required to be reported because of
     Gatan's acquisition by the Company are not presently available and will be
     provided subsequently in an amendment to this Report on Form 8-K on or
     before August 12, 1996.

 
 
(C)  EXHIBITS:

     2. Stock Purchase Agreement dated May 16, 1996, by and
        among Roper Industries, Inc. and all the shareholders of Gatan
        International, Inc.

    *4  Second Amended and Restated Credit Agreement dated May 8, 1996 by
        and between Roper Industries, Inc., and NationsBank, N.A. (South) as
        initial lender and as agent.



*Incorporated herein by reference to Roper Industries, Inc.'s June 5,
 1996 Report on Form 8-K filed on June 6, 1996.
<PAGE>
 
                                   SIGNATURES


   Pursuant to the requirements of the Securities Exchange Act of 1934, the
reporting person has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.



                                  ROPER INDUSTRIES, INC.
                                  ----------------------
                                      (Registrant)



Date    June 13,1996              By   /s/A. Donald O'Steen
     -------------------             ----------------------                  
                                      A. Donald O'Steen                     
                                      Vice President and     
                                      Chief Financial Officer 
                                  
<PAGE>
 
                                 EXHIBIT INDEX

Number            Exhibit *
- ------            ---------

2              Stock Purchase Agreement dated May 16, 1996, by and among
               Roper Industries, Inc. and the stockholders of Gatan
               International, Inc.

4              Second and Amended and Restated Credit Agreement dated May 8,
               1996, by and between Roper Industries, Inc. and NationsBank, N.A.
               (South) as initial lender and as agent, included as Exhibit 4 in
               the June 5, 1996 Roper Industries, Inc. Report on Form 8-K filed
               June 6, 1996, and incorporated herein by this reference.

                                                                               
================================================================================

* The following schedules or similar attachments to the above Exhibits have been
omitted and will be furnished supplementary to the Commission upon request.

                           STOCK PURCHASE AGREEMENT


Exhibits
 
   A    Form of Escrow Agreement
   B-1  Opinion of BI re: the Company
   B-2  Opinion of Arizona Counsel re: MI
   B-3  Opinion of BI re: Sellers
   C    Opinion of PGFM re: Roper
   D    Form of Release
   E    Form of Non-Competition Agreement

Schedules

   1               Sellers
   2.2(a)(iii)     Optionholders
   2.2(a)(iv)      Non-Selling Shareholders
   2.3(d)          Working Capital Allocation Schedule
   3.1             Qualification to do Business
   3.3             Outstanding Options, Etc.
   3.4             Capitalization
   3.5             Subsidiaries
<PAGE>
 
   3.8             Financial Statements
   3.9             Tax matters
   3.10            Litigation
   3.11            Owned Real Property
   3.12            Leased Real Property
   3.13            Liens and Encumbrances
   3.13(a)         Leased Personal Property
   3.15            Material Contacts and Agreement
   3.16            Banking and Personnel Matters
   3.17            Employee Benefits Plans
   3.18            Insurance
   3.19            Environmental Matters
   3.20            Intellectual Property
   3.21            Compliance with laws
   3.22            Consents and Approvals
   3.23            Product Warranty
   3.24            Absence of Changes
   3.25            Transactions with Affiliates
   4.7             Consents and Approvals
   5.11            Required Consents
   15.3            Allocable Portion of Liability

<PAGE>
 
                         STOCK PURCHASE AGREEMENT


      THIS AGREEMENT (the "Agreement") is made as of this 16th day of May, 

1996, by and among Roper Industries, Inc., a Delaware corporation ("Buyer"), 

those persons and entities listed on Schedule 1 hereto (collectively, the 

"Sellers") and Heller Financial, Inc., a Delaware corporation ("Heller").



                                WITNESSETH:

      WHEREAS, the Sellers and the Non-Selling Shareholders (as defined 

herein) own all of the issued and outstanding capital stock of Gatan 

International, Inc., a Pennsylvania corporation ("Gatan International"); and

      WHEREAS, Gatan, Inc., a Pennsylvania corporation ("Gatan") and 

Molecular Imaging Corp., an Arizona corporation ("MIC") are wholly-owned 

subsidiaries of Gatan International (Gatan and MIC are hereinafter collectively 

referred to as the "Operating Subsidiaries"); and

      WHEREAS, Gatan GmbH, a German corporation ("GmbH"), Gatan Service 

Corporation, a Pennsylvania corporation ("GSC") and Gatan Limited, a United 

Kingdom corporation ("Limited") are wholly-owned subsidiaries of Gatan (GmbH, 

GSC and Limited are hereinafter collectively referred to as the "Second Tier 

Subsidiaries"); and

      WHEREAS, Gatan International, the Operating Subsidiaries and the 

Second Tier Subsidiaries are hereinafter each referred to as a "Company" and 

collectively as the "Companies"; and

      WHEREAS, Sellers desire to sell and Buyer desires to purchase all of 

the issued and outstanding stock of Gatan International upon the terms and 

conditions as set forth herein; and 
<PAGE>
 
      WHEREAS, Heller has provided financing to the Companies and holds 

certain capital appreciation rights which shall be redeemed upon closing of the 

transactions contemplated hereby.

      NOW THEREFORE, for and in consideration of the premises and the 

mutual covenants and agreements set forth in this Agreement and other good and 

valuable consideration, the receipt and sufficiency of which are hereby 

acknowledged, and intending to be legally bound hereby, the parties hereto 

agree as follows:



      1.    ACQUISITION
            -----------

      Subject to the terms and conditions of this Agreement, at the Closing on 

the Closing Date, as defined in Article 2 hereof, Sellers covenant and agree to 

sell, assign, transfer and deliver to Buyer, and Buyer agrees to purchase and 

accept, the GI Shares, as that term is defined in Section 3.3 hereof, for the 

consideration set forth in Article 2 hereof.



      2.    CLOSING, CLOSING DATE, CONSIDERATION
            ------------------------------------

      2.1   The Closing and Closing Date.
            ----------------------------

            The closing of the transactions contemplated hereby (the "Closing") 

shall take place at 191 Peachtree Street, N.E., 16th Floor, Atlanta, Georgia, 

at 10:00 a.m. local time on May 31, 1996, or on such other date and at such 

other place as the parties may agree.  The date of the Closing is hereinafter 

referred to as the "Closing Date."

                                      -2-
<PAGE>
 
      2.2   Consideration.
            -------------

            (a)   At the Closing on the Closing Date, in exchange for the Total 

Consideration (as defined below) and simultaneously with the payment thereof, 

Sellers and Heller shall, and as appropriate shall cause Gatan International 

to, take the following actions, using to the extent necessary, portions of the 

Total Consideration:

            (i)   Gatan International shall pay in full all of its existing 

      long-term debt (including the short-term portion) of any kind or nature, 

      including principal, interest, fees, charges, or other amounts due and 

      owing thereunder and receive therefor evidence reasonably satisfactory to 

      Buyer of the termination of any loan agreement and the release of any 

      lien, security interest, mortgage, pledge, assignment or similar 

      encumbrance in connection therewith and specifically including any and 

      all amounts owed to Heller pursuant to that certain Credit Agreement 

      between Heller and Gatan International dated July 31, 1992, as amended 

      ("Company Debt");

            (ii)  Gatan International shall redeem the capital appreciation 

      rights of Gatan International currently held by Heller pursuant to that 

      certain Capital Appreciation Rights Agreement dated July 31, 1992 

      ("CARs") in full and final satisfaction of all amounts due or to become 

      due with respect to the CARs;

            (iii) Gatan International shall pay to those option holders named 

      on Schedule 2.2(a)(iii) hereto (the "Option Holders") an amount to be 
         --------------------

      determined as of the Closing in exchange for the termination of his or 

      her option to purchase shares of Gatan International;

                                      -3-
<PAGE>
 
            (iv)  Gatan International shall redeem from all shareholders of 

      Gatan International who are not Sellers, which shareholders are set forth 

      on Schedule 2.2(a)(iv) hereto (the "Non-Selling Shareholders"), all 
         -------------------

      of the Shares of Gatan International held by such Non-Selling 

      Shareholders for the redemption price to be established as of the Closing 

      Date;

            (v)   the Companies shall have a minimum positive Working Capital 

      of $8,200,000 ("Working Capital" shall mean the excess of cash, accounts 

      receivable, inventories and prepaid expenses over accounts payable and 

      accrued current liabilities of the Companies as of the Closing Date (but 

      excluding (A) any Transaction Expenses, as defined herein, paid by 

      Sellers or Buyer pursuant to Article 9 hereof, (B) other expenses related 

      to the transactions contemplated herein which Sellers have paid or will 

      pay, (C) amounts payable to William E. Offenberg under the terms of his 

      employment agreement with Gatan International due to the change of 

      control of Gatan International, (D) any tax benefit or deduction from 

      income that may result from the exercise of stock options and the 

      acceleration of stock bonuses, and (E) any purchase accounting 

      adjustments to the accounting books and records for financial accounting 

      purposes which may be recorded by the Companies as a result of the 

      transactions contemplated by this Agreement), determined on a 

      consolidated basis, in accordance with GAAP (and net of any reserves 

      required by GAAP) and in a manner consistent with the Financial 

      Statements described in Section 3.8 below; and shall be estimated and 

      finally determined as set forth in Section 2.3 below); 

                                      -4-
<PAGE>
 
            (vi)  cause the sum of $5,000,000 (the "Escrow Funds") to be placed 

      in escrow to cover any indemnification claims made by Buyer based on any 

      breach of the Operational Warranties (as defined herein) pursuant to an 

      Escrow Agreement between the Sellers, Buyer and an independent 

      third-party escrow agent (the "Escrow Agent") substantially in the form 

      of Exhibit A hereto (the "Escrow Agreement"); and
         ---------

            (vii) deliver to Buyer good and sufficient certificates for the GI 

      Shares, accompanied by stock powers duly executed in blank, free and 

      clear of any claim, suit, proceeding, call, commitment, voting trust, 

      proxy, restriction, limitation, security interest, pledge, lien or 

      encumbrance of any kind or nature whatsoever.

            (b)   At the Closing and on the Closing Date, Buyer shall, in 

consideration of the foregoing, pay the sum of Fifty Million Dollars 

($50,000,000), subject to adjustment as described in Section 2.3 below (the 

"Total Consideration"), as follows:

            (i)   Buyer shall pay to Gatan International that amount necessary 

      for Gatan International to pay in full the Company Debt;

            (ii)  Buyer shall pay to Gatan International that amount necessary 

      for Gatan International to redeem the CARs;

            (iii) Buyer shall pay to Gatan International that amount 

      established pursuant to Section 2.2(a)(iii) in order for Gatan 

      International to purchase from the Option Holders all outstanding options 

      to purchase shares of Gatan International;

            (iv)  Buyer shall pay to Gatan International that amount 

      established pursuant to Section 2.2(a)(iv) in order for Gatan 

      International to redeem from the Non-Selling

                                      -5-
<PAGE>
 
      Shareholders all of the Shares of Gatan International held by such 

      Non-Selling Shareholders;

            (v)   Buyer shall contribute to the capital of Gatan International 

      that amount necessary to allow Gatan International to pay to Peter R. 

      Swann and G. Rex Swann (the "Swanns") all pay-off amounts due to the 

      Swanns by Gatan International under each of the Swanns' Non-Competition 

      and Non-Disclosure Agreements with the Company.

            (vi)  Buyer shall contribute to the capital of Gatan International 

      that amount necessary to cause the Working Capital to aggregate the 

      minimum balance described in Section 2.2(a)(v) above;

            (vii) Buyer shall pay to the Escrow Agent, on behalf of the 

      Sellers, the Escrow Funds, to be held in escrow pursuant to the terms of 

      the Escrow Agreement; and

        (viii)Buyer shall pay the balance of Total Consideration to the 

      Sellers by wire transfers of immediately available funds, to such bank 

      accounts located in the United States, as Sellers shall notify Buyer in 

      writing, to be allocated among each of the Sellers in accordance with 

      their respective ownership of GI Shares at Closing, which Sellers shall 

      certify as of the Closing.

      2.3   Estimated and Final Purchase Price Adjustment.
            ---------------------------------------------

            (a)   No later than ten (10) days prior to the Closing Date, 

Sellers shall deliver to Buyer (i) the regularly prepared monthly Financial 

Statements of the Companies for the calendar period ending not more than 

forty-five (45) days prior to the Closing Date, together with a separate 

statement calculating Working Capital as of the date of such Financial 

Statements.  Buyer shall have five (5) days from the receipt to review such 

statement and

                                      -6-
<PAGE>
 
calculations and following such review, the amount of Working Capital set forth 

therein shall be "Working Capital" for purposes of the payment to be made at 

the Closing Date, but shall be subject to subsequent adjustment pursuant to 

paragraphs (b), (c) and (d) below.

            (b)   Within sixty (60) days following the Closing Date, Buyer 

shall prepare and deliver to Sellers' Representative (as defined herein) (i) an 

unaudited consolidated balance sheet of the Companies as of the Closing Date, 

(ii) a schedule setting forth the determination of Working Capital as of the 

Closing Date, which shall be determined in accordance with the determination of 

estimated Working Capital under paragraph (a) above, and (iii) a schedule 

calculating any adjustment to the Total Consideration to be paid in accordance 

with paragraph (d) below.

            (c)   Sellers' Representative shall, within thirty (30) days 

following receipt of the balance sheet and schedules, accept or reject the 

Working Capital adjustment and determination of Total Consideration reflected 

therein.  If Sellers' Representative accepts the calculation, payment shall be 

made as provided in Section 2.3(d) hereof.  If Sellers' Representative 

disagrees with such calculation, it shall give written notice of such 

disagreement and any reason therefor within such thirty (30) day period.  

Should Sellers' Representative fail to notify Buyer of a disagreement within 

such thirty (30) day period, Sellers' Representative shall be deemed to agree 

with Buyer's calculation.  Any disagreement with respect to the Working Capital 

adjustment and the determination of Total Consideration reflected therein shall 

be referred to one of the "Big 6" nationally recognized accounting firms that 

has not been affiliated with the Sellers, Buyer or Gatan International and that 

is mutually acceptable to Sellers' Representative and Buyer ("Arbitrator") and 

in the event that the parties cannot agree,

                                      -7-
<PAGE>
 
the Arbitrator shall be Arthur Andersen & Co.  The Arbitrator shall act as an 

arbitrator and shall issue its report as to the Working Capital adjustment and 

the determination of Total Consideration reflected therein within sixty (60) 

days after such dispute is referred to the Arbitrator.  Each of the parties 

hereto shall bear all costs and expenses incurred by it in connection with such 

arbitration, except that the fees and expenses of the Arbitrator hereunder 

shall be borne by Sellers and Buyer in such proportion as the Arbitrator shall 

determine based on the relative merit of the position of the parties.  This 

provision for arbitration shall be specifically enforceable by the parties and 

the decision of the Arbitrator in accordance with the provisions hereof shall 

be final and binding with respect to the matters so arbitrated and there shall 

be no right of appeal therefrom.

            (d)   If the Working Capital as of the Closing Date shall exceed 

the sum of $8,700,000, Buyer shall pay to Sellers and Heller the amount of the 

excess, adjusted for any amounts previously paid or withheld in the 

determination of the estimated Working Capital adjustment pursuant to paragraph 

(a) above, in accordance with the Allocation Schedule set forth as Schedule 
                                                                   ---------

2.3(d) hereof.  If the Working Capital as of the Closing Date shall be less 
- ------

than the sum of $8,200,000, Sellers and Heller, severally but not jointly, 

shall pay to Buyer the amount of such shortfall, in accordance with the 

Allocation Schedule set forth as Schedule 2.3(d) hereof, adjusted for any 
                                 ---------------

amounts previously paid or withheld in the determination of the estimated 

Working Capital adjustment pursuant to paragraph (a) above.  Final amounts due 

hereunder shall be paid no later than five (5) business days following Sellers' 

Representative's agreement with Buyer's calculation of the Working Capital 

adjustment pursuant to paragraph (c) above or in the event of a disagreement, 

following the resolution of such disagreement by written agreement of

                                      -8-
<PAGE>
 
Sellers' Representative and Buyer or the determination of the Arbitrator 

pursuant to Section 2.3(c) above.  If Sellers or Heller shall fail to pay the 

amount when due, then, without limiting Buyer's remedies, Buyer shall be 

entitled to be reimbursed such amount from the Escrow Funds.



      3.    REPRESENTATIONS AND WARRANTIES OF SELLERS
            -----------------------------------------

      3A.   Transactional Representations.
            -----------------------------

            With respect to the representations and warranties contained in 

Sections 3.1 through 3.7 below (the  "Transactional Representations") and 

subject to the provisions of Article 15 hereof, each Seller represents and 

warrants to Buyer severally and not jointly, as follows:

      3.1   Organization, Qualification and Status.
            --------------------------------------

            Each of the Companies is a corporation duly incorporated and 

organized, validly existing and in good standing under the laws of its 

jurisdiction of incorporation.  Each of the Companies has full corporate power 

and authority to own, lease and use its properties and to carry on its business 

as presently conducted.  Each of the Companies is duly qualified or licensed to 

do business and is in good standing as a foreign corporation in each of the 

jurisdictions set forth on Schedule 3.1 hereto, which constitute the 
                           ------------

jurisdictions in which the character of the Companies' properties or the nature 

of their business requires such qualification and authorization, except for 

those jurisdictions where failure to be so qualified would not have a material 

adverse effect on the business of any of the Companies.

      3.2   Corporate Instruments and Records.
            ---------------------------------

                                      -9-
<PAGE>
 
            The copies of each Company's Certificate of Incorporation or other 

organizational charter or documents and By-laws (collectively, "Organizational 

Documents"), heretofore furnished by Sellers to Buyer, are true, correct and 

complete and each includes all amendments to the date hereof.  The Companies' 

minute books, as made available to Buyer, contain a materially true, complete 

and correct record of all corporate action taken on or prior to the date hereof 

at the meetings of the Companies' shareholders and directors and committees 

thereof.  The stock certificate books and ledgers of the Companies, as made 

available to Buyer, are true, correct and complete and accurately reflect, at 

the date hereof, the ownership of the outstanding capital stock of the 

Companies.

      3.3   Capitalization.
            --------------

            The authorized capital stock of Gatan International consists of 

19,900,000 shares of Class A Common Stock, $.0001 par value per share, of which 

9,690,626 shares will be issued and outstanding on the Closing Date and 100,000 

shares of Class B Common Stock, $.0001 par value per share, all of which are 

issued and outstanding on the date hereof (all such issued and outstanding 

Class A Common Stock and Class B Common Stock of Gatan International 

hereinafter referred to collectively as the "GI Shares").  The GI Shares are 

validly issued, fully paid and non-assessable.  The authorized, issued and 

outstanding capital stock of each of the Operating Subsidiaries and the Second 

Tier Subsidiaries is as set forth on Schedule 3.3 and the shares indicated 
                                     ------------

as outstanding on such schedule are validly issued, fully paid and 

non-assessable.  Except as set forth on Schedule 3.3, there are no 
                                        ------------

authorized or outstanding options, warrants, convertible securities, 

subscription rights, puts, calls, unsatisfied preemptive rights or other rights 

of any nature to purchase or otherwise receive, or to require any of the

                                      -10-
<PAGE>
 
Companies to purchase, redeem or acquire, any shares of the capital stock or 

other securities of any of the Companies and there is no outstanding security 

of any kind convertible into such capital stock.

      3.4   Ownership of Shares.
            -------------------

            The GI Shares represent all of the shares of outstanding capital 

stock of Gatan International.  Such Seller owns and holds, beneficially and of 

record, the entire right, title and interest in and to the GI Shares in the 

amount set forth on Schedule 3.4; Gatan International owns and holds, 
                    ------------

beneficially and of record, the entire right, title and interest in and to all 

of the capital stock of the Operating Subsidiaries; and Gatan owns and holds, 

beneficially and of record, the entire right, title and interest in and to all 

of the capital stock of the Second Tier Subsidiaries, in each case free and 

clear of any claim, suit, proceeding, call, commitment, voting trust, proxy, 

restriction, limitation, security interest, pledge, lien or encumbrance of any 

kind or nature whatsoever.  

      3.5   No Subsidiary.  
            -------------

            Other than the Operating Subsidiaries, the Second Tier Subsidiaries 

and as set forth on Schedule 3.5, the Companies do not have any subsidiary 
                    ------------

or any ownership interest in any other entity.  The Companies are not party to 

any joint venture, partnership or similar arrangement and do not have the right 

to acquire any securities of, or ownership interests in, any other person or 

entity.  The subsidiary set forth on Schedule 3.5 currently has no assets 
                                     ------------

or liabilities and conducts no business.

      3.6   Authorization; Valid and Binding Obligation.
            -------------------------------------------

                                      -11-
<PAGE>
 
            Such Seller has the right, power and authority to execute and 

deliver this Agreement and the agreements entered into pursuant to the terms 

hereof and to perform its obligations hereunder and thereunder and to 

consummate the transactions contemplated hereby and thereby.  This 

Agreement has been duly executed and delivered by such Seller and the 

agreements entered into pursuant to the terms hereof constitute the valid and 

legally binding obligation of such Seller enforceable against it in accordance 

with their terms.

      3.7   No Violation.
            ------------

            Neither the execution and delivery of this Agreement nor the 

consummation of the transactions contemplated hereby, nor compliance with the 

terms hereof, will, (i) conflict with or result in a breach of any of the 

terms, conditions or provisions of the Organizational Documents of any such 

Seller or Company, nor (ii) violate, conflict with or result in a breach of or 

default under any other terms, conditions or provisions of any agreement, 

understanding, arrangement, indenture, contract, lease, sublease, loan 

agreement, note, restriction, obligation or liability to which such Seller or 

any Company is a party or by which they are bound or to which they or their 

assets are subject (individually, an "Instrument" and collectively, the 

"Instruments"), nor (iii) accelerate or give to others any interests or rights, 

including rights of acceleration, termination, modification or cancellation, 

under any Instrument or in or with respect to the business or assets of any 

Company, nor (iv) result in the creation of any lien, claim, charge or 

encumbrance on the assets, capital stock or properties of such Seller or any 

Company, nor (v) conflict with, violate or result in a breach of or constitute 

a default under any law, statute, rule, judgment, order, decree, injunction, 

ruling or regulation of any government, governmental agency, authority or 

instrumentality, court or arbitration tribunal to which such

                                      -12-
<PAGE>
 
Seller or any Company or any of the Companies' assets or properties are 

subject, nor (vi) require such Seller or any Company to give notice to, or 

obtain an authorization, approval, order, license, franchise, declaration or 

consent of, or make a filing with, any third party, including any foreign, 

federal, state, county, local or other governmental or regulatory body other 

than such filings as are required under the Hart-Scott-Rodino Act, nor (vii) 

give rise to any obligation to pay any investment banking fee, brokerage 

commission, finder's fee or similar payment, except for amounts paid to Bowles, 

Hollowell, Conner & Co., as contemplated by Article 9 hereof.

      3B.   Operational Representations.
            ---------------------------

            With respect to the representations and warranties contain in 

Sections 3.8 through 3.29 below (the "Operational Representations") and subject 

to the provisions of Article 15 hereof, each Seller represents to Buyer, 

jointly and severally, as follows:

      3.8   Financial Statements.
            --------------------

            Schedule 3.8 hereto contains true, correct and complete copies 
            ------------

of the following financial statements of Gatan International at the dates and 

for the periods specified (the "Financial Statements"):

            (a)   audited consolidated Financial Statements for the fiscal 

                  years ending May 31, 1995, May 31, 1994, and May 31, 1993 

                  (the "Audited Financial Statements"),

            (b)   unaudited consolidated Financial Statements for the 10 months 

                  ended March 31, 1996 (the "Unaudited Financial Statements").

                                      -13-
<PAGE>
 
Each of the Financial Statements is correct, complete and consistent with the 

books and records of the Companies.  Each of the Audited Financial Statements 

and, to the knowledge of the Companies, the Unaudited Financial Statements, has 

been prepared in conformity with generally accepted accounting principles 

("GAAP") applied on a consistent basis throughout the periods covered thereby, 

and presents fairly the financial condition and results of operations and cash 

flows of the Companies at the dates and for the periods specified, subject, in 

the case of the Unaudited Financial Statements, to the absence of notes and the 

absence of normal recurring year-end adjustments and procedures (none of which 

will be inconsistent with past practice).  With respect to any inventory book 

to physical variance, none of the normal year-end adjustments (i) will 

materially effect the ability of the Companies to meet on a consolidated basis 

Forecasted Earnings (as herein defined), or (ii) will be inconsistent with past 

practice.  "Forecasted Earnings" shall mean the forecasted earnings of the 

Companies for the fiscal year ending May 31, 1996 as set forth in the Gatan 

International Confidential Offering Memorandum dated November, 1995, prepared 

by Bowles Hollowell Conner & Co.

      3.9   Tax Matters.
            -----------

            Except as set forth on Schedule 3.9 attached hereto:
                                   ------------

            (a)   Each of the Companies (i) has timely and properly filed or 

caused to be filed all tax returns which are required to be filed on or prior 

to the date hereof, with any jurisdiction to which it is or has been subject, 

all such tax returns being true, correct and complete in all material respects, 

(ii) has timely paid or caused to be paid in full all taxes which are or have 

become due and payable to all taxing authorities, other than those for which 

extensions have been properly granted or which are being contested in good 

faith for which

                                      -14-
<PAGE>
 
adequate reserves have been established, (iii) has made or caused to be made 

all withholdings of taxes required to be made by it, and such withholdings have 

either been paid to the appropriate governmental agency or set aside in 

appropriate accounts for such purpose, and (iv) has otherwise satisfied, in all 

material respects, all applicable laws and agreements with respect to the 

filing of tax returns and the payment of taxes.

            (b)   Gatan International has properly accrued in accordance with 

GAAP and reflected on the March 31, 1996 balance sheet included in the 

Unaudited Financial Statements (the "Balance Sheet") and has thereafter to the 

date hereof properly accrued all liabilities for taxes and assessments, all 

such accruals being in the aggregate sufficient for payment of all taxes and 

assessments.

            (c)   Each Company will timely and properly file or cause to be 

filed all tax returns which it is or will be required to file on or before the 

Closing Date (taking into account any extensions which have been properly 

granted), all such tax returns to be true, correct and complete in all 

respects, and will pay or cause to be paid in full when due all taxes, if any, 

which become due and payable pursuant to such returns or assessments received 

by it on or before the Closing Date.

            (d)   The federal income tax returns of the Companies have not been 

audited by the Internal Revenue Service.

            (e)   There are no unassessed tax deficiencies proposed or, to the 

Companies' knowledge, threatened against any Company, nor are there any 

agreements, waivers, or other arrangements providing for extension of time with 

respect to the assessment or collection of any tax against any Company or any 

actions, suits, proceedings, investigations or claims now

                                      -15-
<PAGE>
 
pending against any Company with respect to any tax, or any matter under 

discussion with any federal, state, local or foreign authority relating to any 

taxes.

            (f)   The Companies are not and have never been members of an 

affiliated group of corporations (within the meaning of Section 1504 of the 

Internal Revenue Code ("IRC")).

            (g)   No Company is a party to, or bound by, and no Company has any 

obligation under, any tax sharing, tax indemnity, or similar agreement.

            (h)   The Companies have not made and will not make a change in 

method of accounting for a taxable year beginning on or before the Closing 

Date, which would require them to include any adjustment under Section 481(a) 

of the IRC in taxable income for any taxable year beginning on or after the 

Closing Date.

            (i)   No Company has filed a consent pursuant to Section 341(f) of 

the IRC, or agreed to have Section 341(f)(2) of the IRC apply to any 

disposition of any asset owned by it.

            (j)   No Company has been a target corporation or target affiliate 

in a qualified stock purchase within the meaning of Section 338 of the IRC (or 

any predecessor provision).

            (k)   None of the assets of any Company is property which such 

Company is required to treat as being owned by any other person pursuant to the 

so-called "safe harbor lease" provisions of former section 168(f)(8) of the 

IRC.

            For purposes of this Agreement, "tax" and "taxes" shall include, 

but not be limited to, all federal, foreign, state, county, and local income, 

sales, use, wage, payroll, franchise, gross receipts, real and personal, 

tangible or intangible property or ad valorem taxes.

                                      -16-
<PAGE>
 
            For purposes of this Agreement, "tax return" or "tax returns" shall 

mean all returns, reports, estimates, schedules, declarations, information 

statements and documents relating to or required to be filed in connection with 

any taxes pursuant to the statutes, rules or regulations of any federal, state, 

local or foreign government taxing authority.

      3.10  Litigation.
            ----------

            Except as set forth on Schedule 3.10 attached hereto, there are 
                                   -------------

no actions, suits or proceedings at law or in equity, or arbitration 

proceedings, or claims, demands or investigations pending against or involving 

any Company or, to the Companies' knowledge, threatened against or involving 

any Company.  Sellers have delivered to Buyer copies of all pleadings listed on 

Schedule 3.10, and made available as requested by Buyer all correspondence 
- -------------

and other documents relating to each proceeding, and none of such proceedings, 

singly or in the aggregate, will have a material adverse effect on the 

business, operations, assets, condition or prospects of any Company.

      3.11  Owned Real Estate.
            -----------------

            Except as set forth on Schedule 3.11, the Companies do not own 
                                   -------------

any real estate.

      3.12  Leased Real Property.
            --------------------

            The Companies are the lessees of the real estate described on 

Schedule 3.12 hereto (the "Leased Real Property").  A true and correct copy 
- -------------

of each lease pursuant to which any Company leases the Leased Real Property and 

any amendments, extensions or renewals thereof (the "Real Property Leases") has 

previously been delivered to Buyer.  Each Real Property Lease is in full force 

and effect and there is no existing default or event of default by any of the 

Companies, real or claimed, or event which with notice or the lapse of time or 

both would

                                      -17-
<PAGE>
 
constitute a default by any Company.  As of the Closing, the Companies' 

interests in the Real Property Leases will be free and clear of any mortgages 

or liens and will not be subject to any deeds of trust, assignments, subleases 

or rights of any third parties other than the lessors thereof.  The 

transactions contemplated by this Agreement will not cause a breach, default or 

event of default under any of the Real Property Leases.  The Companies now 

enjoy and on the Closing Date will enjoy quiet and undisturbed possession of 

the Leased Real Property.

      3.13  Owned and Leased Tangible Personal Property.
            -------------------------------------------

            Except (i) as reflected as a lien in the footnotes to the Financial 

Statements, (ii) as set forth on Schedule 3.13 hereto, (iii) for liens for 
                                 -------------

taxes not yet delinquent, (iv) for mechanic's, materialmen's and similar liens 

which have arisen in the Ordinary Course of Business (as defined herein), or 

(v) purchase money security interests which have arisen in the Ordinary Course 

of Business (the foregoing being collectively referred to as "Permitted 

Liens"), the Companies have and will have on the Closing Date all right, title, 

and interest in, and good and marketable title to, their respective owned 

tangible personal property free and clear of any claim, lease, pledge, 

mortgage, security interest, conditional sale agreement or other title 

retention agreement, restriction, lien or encumbrance of any kind or nature 

whatsoever.  An action will be deemed to have been taken in the "Ordinary 

Course of Business" only if such action is similar in nature, magnitude and 

quality to actions customarily taken, without any authorization by the board of 

directors, in the ordinary course of the normal day-to-day operations of the 

business of the Companies consistent with past practice.

      Schedule 3.13(a) contains a complete and accurate list of all 
      ----------------

personal property leased by any of the Companies.  True and correct copies of 

all leases for personal property and any

                                      -18-
<PAGE>
 
amendments, extensions or renewal thereof have previously been delivered to 

Buyer by Sellers.  Each lease and license relating to any tangible personal 

property is valid and binding against the Companies, is in full force and 

effect, is not in default by the Companies as to the payment of rent or 

otherwise and, to the Companies' or such Seller's knowledge, is not in default 

by the other party thereto.

      3.14  Condition of Buildings and Tangible Personal Property.
            -----------------------------------------------------

            All of the items of tangible personal property owned, leased or 

used by each Company on the date hereof are, and on the Closing Date will be, 

in reasonably good operating condition and repair and are suitable and 

sufficient for the present conduct of such Company's business.

      3.15  Contracts.
            ---------

            Except as set forth on Schedule 3.15 attached hereto, all 
                                   -------------

Material Contracts (as herein defined) to which any Company is a party have 

been duly and validly executed by the Companies, and to the Companies' 

knowledge, are in full force and effect as of the date hereof.  There exists no 

breach or violation of or default by any Company under any Material Contract, 

and no event has occurred or condition or state of facts exists which, after 

notice or the passage of time or both, would constitute a default by the 

Companies under any such contract, as to time or manner of performance, or as 

to warranties thereunder, or otherwise.  No Company has given or received any 

written notice, or has knowledge of any oral notice, regarding the 

cancellation, termination or limitation of, or any amendment, modification, or 

change to any Material Contract, and the consummation of the transactions 

contemplated by this Agreement would not constitute a breach, or result in a 

termination or require consent under, any Material Contract. 

                                      -19-
<PAGE>
 
To the Companies' knowledge, nothing contained in any Material Contract 

constitutes a violation of any applicable law, rule or regulation.  The conduct 

of the Companies under any Material Contract prior to Closing does not give 

rise to any claim by any third party that such conduct constitutes a violation 

of any applicable law, rule or regulation.  Set forth on Schedule 3.15 
                                                         -------------

hereto is a list of the following types of contracts to which any Company is a 

party or by which they or their properties or assets are bound:

            (a) purchase orders entered into in the Ordinary Course of Business 

having a value in excess of $100,000, (b) except for purchase orders entered 

into in the Ordinary Course of Business, contracts for the future purchase of, 

or payment for, supplies, products or services requiring or reasonably 

anticipated to require the payment by any Company of more than $25,000 in any 

twelve-month period, (c) contracts to sell or supply products or to perform 

services under which any Company is entitled to receive $25,000 or more in any 

twelve month period, (d) note, debenture, bond, equipment trust agreement, 

letter of credit agreement, or other contract for the borrowing or lending of 

money, (e) agreement covering the employment of any present or former employee 

or consultant of any Company who is or was an officer, director or shareholder 

of Gatan International or where the annual salary of such employee or 

consultant is or was $50,000 or more, under which such individual or any 

Company has a continuing obligation, (f) agreement which obligates any Company 

to act as a guarantor or surety, irrespective of the amount involved, (g) 

noncompetition agreement with any present or former officer, director employee 

or consultant of any Company under which such individual or any Company has a 

continuing obligation, (h) distribution, dealer, representative, or sales 

agency agreement, contract or commitment, (i) contract limiting or restraining 

any of the

                                      -20-
<PAGE>
 
Companies, or any employee of any of the Companies from engaging or competing 

in any manner in any business, (j) capital leases, loan agreements, indentures, 

mortgages, pledges, hypothecations, deeds of trust, conditional sale or title 

retention agreements, security agreements or equipment financing agreements, 

and (k) contracts which are not of a nature otherwise described in the 

preceding paragraphs of this Section 3.15 which is continuing over a period of 

more than six (6) months from the Closing Date or involving the payment or 

receipt by any of the Companies of an amount exceeding $75,000 

(collectively, the "Material Contracts").  True, correct and complete copies of 

the Material Contracts have heretofore been delivered by Sellers to Buyer.  

Schedule 3.15 also contains a description of the existing arrangements 
- -------------

between any Company and Digital Instruments.

      3.16  Banking and Personnel Matters.
            -----------------------------

            Schedule 3.16 hereto contains a true, complete and correct list 
            -------------

of:  (i) the names of all banks and other financial institutions (with account 

numbers) in which any Company has an account or safe deposit box, and all 

brokerage firms and other entities and persons holding funds or investments of 

any Company, and the names of all persons authorized to draw thereon or have 

access thereto; (ii) the names of all incumbent directors and officers of each 

Company; (iii) the names of all persons holding powers of attorney from any 

Company and a summary statement of the terms thereof.

      3.17  Labor and Employment Matters.
            ----------------------------

            (a)   No corporation, trade, business or other entity, other than 

the Companies, would, together with any Company, now or in the past constitute 

a single employer within the meaning of IRC Section 414.  No Company presently 

maintains or is obligated to contribute to or has

                                      -21-
<PAGE>
 
ever maintained or been obligated to contribute to any employee benefit plan 

(as defined in Section 3(3) of the Employee Retirement Income Security Act of 

1974, as amended ("ERISA")), or any employment contract, employee loan, 

incentive compensation, profit sharing, retirement, pension, deferred 

compensation, severance, termination pay, stock option or purchase plan, 

guaranteed annual income plan, fund or arrangement, payroll incentive, policy,

fund, agreement or arrangement, non-competition or consulting agreement, 

hospitalization, disability, life or other insurance plan, or other employee 

fringe benefit program or plan, or any other plan, payroll practice, policy 

fund agreement or arrangement similar to or in the nature of the foregoing, 

oral or written ("Employee Benefit Plans" or "Plans"), except as set forth on 

Schedule 3.17 hereto.  True, correct and complete copies of all of the written
- -------------
Plans and labor agreements, and true, correct and complete written descriptions

of all of the oral Plans, described in Schedule 3.17 (together with all 
                                       -------------
documents relating to each such Plan required to have been filed prior to the 

date hereof with governmental authorities for each of the three most recently 

completed plan years, and attorney's responses to auditors requests and 

financial statements and actuarial reports for the same period) have heretofore 

been delivered by Sellers to Buyer.

            (b)   With respect to each Employee Benefit Plan:

                  (1)   all disclosures to employees, participants and 

            beneficiaries relating to each such Plan and required to have been 

            made on or before the Closing Date have been or will be duly made 

            by that date;

                  (2)   there is no litigation, disputed claim (other than 

            routine claims for benefits), governmental proceeding, inquiry or 

            investigation pending or threatened

                                      -22-
<PAGE>
 
            with respect to each such Plan, its related trust, or any 

            fiduciary, administrator or sponsor of such Plan;

                  (3)   each such Plan has been established, maintained, funded 

            and administered in all material respects in accordance with its 

            governing documents, and any applicable provisions of ERISA, the 

            IRC, other applicable law, and all regulations promulgated 

            thereunder;

                  (4)   neither any such Plan nor any fiduciary has engaged in 

            a prohibited transaction as defined in ERISA Section 406 or IRC 

            Section 4975 (for which no individual or class exemption exist 

            under ERISA Section 408 or IRC Section 4975, respectively);

                  (5)   all filings and reports as to each such Plan required 

            to have been made on or before the Closing Date to the Internal 

            Revenue Service, or to the United States Department of Labor or to 

            the PBGC, have been or will be duly made by that date;

                  (6)   each such Plan which is intended to qualify as a 

            tax-qualified retirement plan under IRC Section 401(a) has received 

            a favorable determination letter(s) from the Internal Revenue 

            Service as to qualification of such Plan for the period from its 

            adoption through the Closing Date; nothing has occurred, whether 

            by action or failure to act, which has resulted in or would cause 

            the loss of such qualification; and each trust thereunder is 

            exempt from tax pursuant to IRC Section 501(a);

                  (7)   each such Plan which is required to satisfy IRC Section

            Section 401(k)(3) or 401(m)(2) has been tested for compliance with, 

            and has satisfied the requirements

                                      -23-
<PAGE>
 
            of, IRC Section Section 401(k)(3) and 401(m)(2) for each plan year 

            ending prior to the Closing Date;

                  (8)   no event has occurred and no condition exists relating 

            to any such Plan that would subject any Company to any tax or 

            liability under IRS Section Section 4971, 4972 or 4979, or to any 

            liability under ERISA Section Section 502 or 4071; and

                  (9)   to the extent applicable, each such Plan has been 

            funded in accordance with its governing documents, ERISA and the 

            IRC, has not experienced any accumulated funding deficiency 

            (whether or not waived) and has not exceeded its full funding 

            limitation (within the meaning of IRC Section 412) at any time.

            (c)   With respect to any Plan which provides group health benefits 

to employees of any Company and is subject to the requirements of IRC Section 

4980B and ERISA Title I Part 6 ("COBRA"):

                  (1)   such group health plan has been administered in every 

            material respect in accordance with its governing documents and 

            COBRA; and

                  (2)   all filings, reports, premium payments (if any) and 

            notices as to each such group health plan required to have been 

            made on or before the Closing Date to government agencies, 

            participants and/or beneficiaries have been or will be duly made by 

            that date.

            (d)   With respect to employee benefit matters generally:

                  (1)   no Company has any past, present or future obligation 

            or liability to contribute to any multiemployer plan as defined in 

            ERISA Section 3(37);

                                      -24-
<PAGE>
 
                  (2)   no Company (nor any person, firm or corporation which 

            is or has been under common control within the meaning of Section 

            4001(b) of ERISA with any Company) maintains or contributes to or 

            has ever maintained or contributed to any Plan subject to Title IV 

            of ERISA;

                  (3)   no Company is obligated, contingently or otherwise, 

            under any agreement to pay any amount which would be treated as a 

            "parachute payment," as defined in IRC Section 280G(b) (determined 

            without regard to IRC Section 280G(b)(2)(A)(ii));

                  (4)   except as set forth on Schedule 3.17 and other than 
                                               -------------

            employee stock options to be terminated hereunder, the consummation 

            of the transactions contemplated hereby will not accelerate or 

            increase any liability under any Plan because of an acceleration or 

            increase of any of the rights or benefits to which Plan 

            participants or beneficiaries may be entitled thereunder;

                  (5)   except as set forth on Schedule 3.17, no Company 
                                               -------------

            has any obligation to any retired or former employee or any current 

            employee of the Company upon retirement or termination of 

            employment under any Plan, other than such obligations imposed by 

            COBRA; and

                  (6)   except as set forth on Schedule 3.17, any Plan 
                                               -------------

            which is an "employee welfare benefit plan," within the meaning of

            ERISA Section 3(1), may be terminated prospectively without 

            liability to any Company or the Buyer, including, without 

            limitation, liability for unreported (e.g., run-off) benefit 

            claims, premium adjustments or termination charges of any kind.

                                      -25-
<PAGE>
 
            (e)   The Companies have not received any written notice or 

communication that any executive, key employee, or group of employees has any 

plans to terminate employment with any of the Companies.  None of the Companies 

is a party to or bound by any collective bargaining agreement, nor has any of 

them experienced any strikes, grievances, claims of unfair labor practices, or 

other collective bargaining disputes.  None of the Companies has committed any 

unfair labor practice.  None of the Sellers and the directors and officers (and 

employees with responsibility for employment matters) of the Companies has any 

knowledge of any organizational effort presently being made or threatened by or 

on behalf of any labor union with respect to employees of any of the Companies.

      3.18  Insurance.
            ---------

            Schedule 3.18 lists all policies of insurance and all surety 
            -------------

and other bonds to which any Company now is a party, or during the immediately 

preceding twelve (12) months was a party, specifying for each policy or bond 

the insurer, the amount of coverage, the type of insurance and any pending 

claims thereunder.  All of such policies and bonds which have expired were 

valid and in full force and effect during their respective terms, and all other 

of such policies and bonds are valid and in full force and effect at present, 

and no claim has been made, or notice given, to cancel or avoid any of said 

policies or bonds or to reduce the coverage provided thereby.  There is no 

existing default by any of the Companies or event which, with notice or the 

lapse of time or both, would constitute a default by any of the Companies with 

respect to any existing policies.  All premiums due to date have been paid in 

full.

                                      -26-
<PAGE>
 
      3.19  Environmental Matters.
            ---------------------

            Except as disclosed on Schedule 3.19, (i) the Companies have 
                                   -------------

complied in all material respects with all then applicable Environmental Laws 

and specifically, without limitation, have not violated in any material 

respect, and the business of the Companies as currently being conducted does 

not violate in any material respect any applicable law, ordinance, rule, 

prohibition or regulation relating to air, water, or noise pollution, or the 

production, generation, storage, labeling or disposition of solid, infectious 

or radioactive wastes or other Hazardous Materials, or the health, safety or 

environmental conditions on, beneath, or about any of the properties used, 

owned, or leased by any Company, or relating to their business; (ii) each 

Company has timely filed all required reports, obtained all required material 

approvals and permits relating to its business, and generated and maintained in 

all material respects all required data, documentation and records under any 

applicable Environmental Laws; (iii) no Company nor, to the knowledge of any 

Company, any other person has placed, stored, buried, spilled or released, 

used, generated, manufactured, refined, processed, treated, dumped or disposed 

of, or transported any Hazardous Materials produced by, or resulting from, any 

business, operations, or processes on, beneath, or about any of the properties 

used, owned, or leased by any Company or in connection with the business, 

except for inventories for such Hazardous Materials to be used in the Ordinary 

Course of Business of the Company (which inventories were and are stored and 

disposed of in accordance in all material respects with applicable laws and 

regulations and in a manner such that there was no release of any such 

Hazardous Materials into the environment which would cause the incurrence of 

clean-up or other response costs under Environmental Laws); (iv) there are no 

Hazardous Materials presently stored or located on, in

                                      -27-
<PAGE>
 
or about any portion of the business, except for those stored and located at 

the business in compliance in all material respects with applicable 

Environmental Laws; (v) no Company has received any notice from any 

governmental agency or private or public entity advising it that it is or may 

be responsible, or potentially responsible, for response costs with respect to 

a release, a threatened release or clean up of Hazardous Materials produced by, 

or resulting from, its business, operations, or processes.  The Companies, in 

connection with their operations related to the business, have not transported, 

or arranged for the transportation of, any Hazardous Material to a location 

that is listed or, to the Companies' knowledge, nominated for listing on the 

National Priorities List ("NPL"), Comprehensive Environmental Response 

Compensation and Liability Information System ("CERCLIS") or state equivalents; 

nor, to the Companies' knowledge is any such location the subject of federal, 

state or local enforcement actions or other investigations or not licensed or 

authorized to receive any such Hazardous Waste.  None of the properties used, 

owned or leased by the Companies is listed or, to the Companies' knowledge, 

nominated for listing on the NPL, CERCLIS or state equivalents.

      As used in this Agreement the terms (i) "Environmental Laws" shall mean 

all federal, state, foreign or local statutes, ordinances, regulations, 

guidance, policies, ordinances, licenses, authorizations, restrictions, orders, 

and requirements of law pertaining to human health or safety, any Hazardous 

Material, or relating to any environmental processes or condition, including, 

without limitation, the Comprehensive Environmental Response, Compensation, and 

Liability Act ("CERCLA"), the Clean Air Act, the Clean Water Act, the Resource 

Conservation and Recovery Act ("RCRA"), the Endangered Species Act, the Federal 

Insecticide, Fungicide and Rodenticide Act, the Hazardous Materials 

Transportation Act, the Surface Mining Control

                                      -28-
<PAGE>
 
and Reclamation Act, the Emergency Planning and Community Right to Know Act, 

the Safe Drinking Water Act, the Toxic Substances Control Act, the Coastal Zone 

Management Act, the National Environmental Policy Act, the Noise Control Act.  

As used in this Agreement, Environmental Laws shall mean any of such laws or 

regulations as the same exist now or at the Closing Date; and "Hazardous 

Material" shall mean (a) hazardous wastes, hazardous substances, hazardous 

materials, hazardous constituents, hazardous contents, pollutants, 

contaminants, toxic substances or related substances, whether solids, liquids 

or gases, regulated by, or otherwise subject to, any Environmental Laws; (b) 

petroleum, refined petroleum products and any such substances in their virgin, 

used or waste state; and (c) any substance presently listed in Subpart Z of the 

regulations promulgated under the Occupational Safety and Health Act, as 

amended.

      3.20  Intellectual Property Matters.
            -----------------------------

            (a)   Except for Permitted Liens and as set forth in Schedule 
                                                                 ---------

3.20, each Company has all right, title and interest, free and clear of all 
- ----

liens, charges, encumbrances, restrictions, royalties or any claims of 

ownership by third parties whatsoever, to all world-wide intellectual property 

assets of such Company, including, without limitation, all patents and 

reissues, divisions, continuations and extensions of such patents, patents 

pending and applications for patents, patent disclosures docketed, registered 

and unregistered trademarks and service marks and applications for registration 

of such marks, trade names, registered and unregistered copyrights and 

applications for copyright registration, mask works and applications for mask 

work registration, all trade secrets, know-how, and all rights under any 

leases, licenses, franchises, permits, authorizations, agreements and 

arrangements with respect to such intellectual property assets (hereinafter all 

of the foregoing are collectively referred to as "Intellectual

                                      -29-
<PAGE>
 
Property Assets"), whether owned by such Company or owned by others and used by 

such Company.

            (b)   True, correct and complete copies of all such leases, 

licenses, franchises, permits, authorizations, agreements and arrangements have 

heretofore been delivered to the Buyer and are listed in Schedule 3.20.
                                                         -------------

            (c)   Schedule 3.20 hereto briefly describes all of such 
                  -------------

Intellectual Property Assets of the Companies.  All of the issued patents and 

registered trademarks and registered service marks shown in Schedule 3.20 
                                                            -------------

are subsisting and have been adequately maintained, including maintenance 

payments therefor and renewals or extensions thereof, except as expressly 

disclosed in Schedule 3.20.  No holding, decision, or judgment in a matter 
             -------------

involving any of such issued patents and registered trademarks or service marks 

has been rendered by any governmental or judicial authority which could limit, 

cancel or question the validity of any of such issued patents or registered 

trademarks or service marks.

            (d)   The manufacture or distribution of products currently 

marketed or under development by the Companies does not violate any law, 

statute, order, rule or regulation applicable thereto, or to the knowledge of 

any Company infringe or violate any patent, trademark, copyright, or other 

intellectual property right of any other person, either in the United States or 

in any other country.

            (e)   Excluding matters set forth in Schedule 3.20, there exist 
                                                 -------------

no pending, or to the best knowledge of the Companies, anticipated litigation, 

action, lawsuits, claims or assessments, including without limitation the 

filing or threatened filing, whether voluntary or involuntary, of insolvency or 

bankruptcy proceedings or forfeiture proceedings, claims of

                                      -30-
<PAGE>
 
infringement, misappropriation or invalidity, or other claims adverse to the 

ownership rights of the Companies with respect to the Intellectual Property 

Assets.

            (f)   The Companies have disclosed the identity of, and to the 

Companies' knowledge all intellectual properties held by, all third parties who 

are actual or are believed to be competitors of the Companies, and who have 

patents, trademarks, copyrights, or other intellectual property rights that 

materially affect the Companies' ability to make, use, or sell its products 

currently marketed or under development.

            (g)   The Companies have promulgated and used their best efforts to 

enforce a trade secret protection program and, to the best knowledge of the 

Company, there has been no material violation of such program by any person or 

entity.  All of the Intellectual Property Assets constituting trade secrets 

have at all times been maintained in confidence and have been disclosed by the 

Companies only to employees, consultants, and other third parties having "a 

need to know" the contents thereof in connection with the performance of their 

duties to the Companies.

            (h)   To the knowledge of the Companies, the Companies have 

disclosed the identity of all third parties who are actual or are believed to 

be infringers of any Intellectual Property Assets.

      3.21  Compliance with Laws.
            --------------------

            Except as specifically disclosed in Schedule 3.21 of this 
                                                -------------

Agreement, each Company has complied in all material respects with all 

applicable laws, statutes, rules and regulations of federal, state, local and 

foreign governments and governmental agencies applicable

                                      -31-
<PAGE>
 
to it and its business, assets and properties, including, without limitation, 

laws on exports and investment activities in foreign countries.

      3.22  Consents and Approvals.
            ----------------------

            Each Company has all material required licenses, permits, consents 

and authorizations and has made all necessary filings with all necessary local, 

state, Federal, or other foreign agencies, commissions, or governments, in 

order to conduct their businesses as currently conducted.  Except as set forth 

on Schedule 3.22 hereto and except for the filings under the 
   -------------

Hart-Scott-Rodino Act, there are no authorizations, consents, approvals, 

permits, licenses, filings, registrations or notices required to be obtained or 

given by the Companies or any Seller or waiting periods required to expire in 

order that this Agreement and the transactions provided for herein may be 

consummated by Sellers.

      3.23  Product Warranty.
            ----------------

            To the knowledge of the Companies, each product manufactured, sold, 

leased, or delivered by any of the Companies has been in material conformity 

with all applicable contractual commitments and all express and implied 

warranties, and, to the knowledge of the Companies, none of the Companies has 

any liability (and there is no basis for any present or future action, suit, 

proceeding, hearing, investigation, charge, complaint, claim, or demand against 

any of them giving rise to any liability) for replacement or repair thereof or 

other damages in connection therewith except pursuant to the terms of the 

Companies' standard terms and conditions, a copy of which is attached as 

Schedule 3.23.
- -------------

                                      -32-
<PAGE>
 
      3.24  Absence of Changes.
            ------------------

            Except as described on Schedule 3.24, since the date of the 
                                   -------------

Unaudited Financial Statements, there has not been any transaction or 

occurrence in which any Company has:  (a) issued or delivered any stock or 

other securities or granted any options or rights to purchase any securities, 

except for the issuance of shares to Mr. Offenberg pursuant to that certain 

agreement between Mr. Offenberg and Gatan International dated as of September 

24, 1994, as amended (the "Offenberg Agreement"), which such shares shall 

constitute GI Shares hereunder; (b) borrowed, loaned or guaranteed any amount, 

except in the Ordinary Course of Business; (c) discharged or satisfied any lien 

or incurred or paid any obligation or liability (absolute or contingent) other 

than current liabilities shown on the Financial Statements or current 

liabilities incurred since such date in the Ordinary Course of Business; (d) 

declared or made any payment or distribution to Sellers or purchased or 

redeemed any shares of its capital stock or other securities; (e) mortgaged, 

pledged or subjected to lien any of its assets, tangible or intangible, other 

than Permitted Liens; (f) sold, assigned or transferred any of its tangible 

assets, except for sale of inventory in the Ordinary Course of Business; (g) 

sold, assigned, transferred, licensed or sublicensed any patents, trademarks, 

trade names, copyrights, or other intellectual property owned or licensed by 

any Company; (h) suffered any material adverse change in its business or 

financial position; (i) made any change in its accounting policies or 

practices; (j) made any change in employee compensation or in any employee 

benefit plan other than in the Ordinary Course of Business; (k) entered into 

any employment contract or modified the terms of any such existing contract 

other than in the Ordinary Course of Business; (l) entered into any transaction 

with any officer or director of any of the Companies; (m) suffered any loss to 

any of its

                                      -33-
<PAGE>
 
properties; (n) compromised, cancelled, waived or released any material claim 

other than in the Ordinary Course of Business; (o) amended or authorized an 

amendment to any Company's Organizational Documents; (p) delayed or postponed 

the payment of accounts payable outside the Ordinary Course of Business; (q) 

made any capital expenditure in excess of $25,000 outside the Ordinary Course 

of Business; or (r) accelerated, terminated, modified or cancelled any 

agreement, contract, lease, or license of any Company except in the Ordinary 

Course of Business.

      3.25  Transactions with Affiliates.
            ----------------------------

            Except as set forth on Schedule 3.25 hereto, no Seller, nor any 
                                   -------------

officer or employee of any of the Companies, nor any member of any such party's 

immediate family or any other affiliate of such party, owns or has a 5% or more 

ownership interest in any corporation or other entity that is or was during the 

last three years a party to, or in any property which is or was during the past 

three years the subject of, any agreement, understanding, business arrangement 

or relationship with any of the Companies.

      3.26  Certain Payments.
            ----------------

            No Company or to any Company's knowledge, any director, officer, 

agent or employee of any Company, or any other person associated with or acting 

for or on behalf of any Company, has, in connection with the business of the 

Companies, directly or indirectly (a) made any contribution, gift, bribe, 

rebate, payoff, influence payment, kickback, or other payment to any person, 

private or public regardless of form, whether in money, property, or services 

(i) to obtain favorable treatment in securing business, (ii) to pay for 

favorable treatment for business secured, (iii) to obtain special concessions 

or for special concessions already obtained, for or in

                                      -34-
<PAGE>
 
respect of any Company or any affiliate of any Company, or (iv) in violation of 

any law applicable to any Company, or (b) established or maintained any fund or 

asset that has not been recorded in the books and records of the Companies.  

      3.27  Liabilities.  To the knowledge of the Companies, none of the 
            -----------

Companies has any material liabilities or obligations, individually or in the 

aggregate, direct or indirect, matured or unmatured, absolute or contingent or 

otherwise, except for (i) liabilities reflected on the Financial Statements and 

not heretofore paid or discharged, (ii) liabilities incurred since the most 

recent Financial Statement, consistent with past practice and in the Ordinary 

Course of Business, or (iii) liabilities set forth on any Schedule hereto.



      4.    REPRESENTATIONS AND WARRANTIES OF BUYER
            ---------------------------------------

            Buyer represents and warrants to Sellers and covenants and agrees 

with Sellers as follows:



      4.1   Organization and Qualification.
            ------------------------------

            Buyer is a corporation duly organized, validly existing and in good 

standing under the laws of the State of Delaware and has the corporate power 

and authority to carry on its business as presently conducted.  Buyer is duly 

qualified or licensed to do business and is in good standing as a foreign 

corporation in each of the jurisdictions in which the character of its 

properties or the nature of its business requires such qualification and 

authorization.

      4.2   Authorization; Valid and Binding Obligation.
            -------------------------------------------

                                      -35-
<PAGE>
 
            Subject to the approval of its Board of Directors, Buyer has full 

corporate power and authority to execute and deliver this Agreement and the 

agreements entered into pursuant to the terms hereof and to perform its 

obligations hereunder and thereunder, and upon obtaining such approval, the 

Agreement and the agreements entered into pursuant to the terms hereof will 

constitute the legal, valid and binding obligation of Buyer, enforceable 

against it in accordance with their terms.

      4.3   Litigation.
            ----------

            There are no actions, proceedings, suits or investigations pending 

or threatened against Buyer which, if resolved unfavorably, would prohibit the 

consummation of the transactions contemplated by this Agreement.

      4.4   Investment.
            ----------

            (a)   Buyer acknowledges that no registration statement relating to 

the GI Shares has been or shall be filed with the United States Securities and 

Exchange Commission under the Federal Securities Act of 1933, as amended, or 

the securities laws of any states.

            (b)   The GI Shares will be acquired solely by and for the account 

of Buyer for investment purposes only and are not being purchased for 

subdivision, fractionalization, resale or distribution; Buyer has no contract, 

undertaking, agreement or arrangement with any person to sell, transfer or 

pledge the GI Shares to such person or anyone else and Buyer has no present 

plans or intentions to enter into any such contract, undertaking or 

arrangement.

            (c)   Buyer has such knowledge and experience in financial and 

business matters in general, and in investments of the type to be made by Buyer 

hereunder in particular, to fairly evaluate the merits and risks of an 

investment in the Companies.  Buyer's financial condition

                                      -36-
<PAGE>
 
is such that it has no need for liquidity with respect to its investment in the 

Companies to satisfy any existing or contemplated undertaking or indebtedness 

and is able to bear the economic risk of its investment in the Companies for an 

indefinite period of time, including the risk of losing all of such investment, 

and loss of such investment would not materially adversely affect it.

            (d)   Buyer expressly acknowledges that (i) no Federal or state 

agency has reviewed or passed upon the adequacy of the information set forth in 

the documents submitted to Buyer or made any finding or determination as to the 

fairness for investment, or any recommendation or endorsement of an investment 

in the Companies; and (ii) there will be no public market for the interest and, 

accordingly, it may not be possible for Buyer to liquidate its investment in 

the Companies.

      4.5   Financing.
            ---------

            Buyer will have the funds necessary (a) to pay at the Closing the 

Purchase Price and all other amounts necessary to consummate the transactions 

contemplated hereby, and (b) to provide sufficient working capital to operate 

the business of the Companies from and after the Closing Date.  Buyer is 

currently negotiating and documenting the expansion of its existing loan 

facilities and will have sufficient funds to consummate the transaction as of 

the Closing Date.



      4.6   Absence of Conflict or Breach.
            -----------------------------

            The execution, delivery and performance of this Agreement by Buyer 

will not conflict with or result in a breach of any of the terms, conditions or 

provisions of the Certificate of Incorporation or By-laws of Buyer, or of any 

law, statute, rule or regulation of any governmental authority, or conflict 

with or result in a breach of any of the terms, conditions or

                                      -37-
<PAGE>
 
provisions of any judgment, order, injunction, decree or ruling of any court or 

arbitration tribunal or governmental authority to which Buyer is subject, or of 

any provision of any agreement or understanding or arrangement to which Buyer 

is a party or by which it is bound, or constitute a default thereunder, or 

given to others any interest or rights, including any rights of acceleration, 

termination or cancellation, in or with respect to the business or arrangements 

to which it is a party or by which it is bound.

      4.7   Consents and Approvals.
            ----------------------

            Except as set forth on Schedule 4.7 hereto and except pursuant 
                                   ------------

to the Hart-Scott-Rodino Act, there are no authorizations, consents, approvals 

or notices required to be obtained or given by Buyer or waiting periods 

required to expire, in order that this Agreement and the transactions provided 

for herein may be consummated by Buyer.



      5.    AFFIRMATIVE COVENANTS AND UNDERTAKINGS OF SELLERS
            -------------------------------------------------

      From and after the date of this Agreement to and including the Closing 

Date, Sellers, severally and jointly, covenant and agree to comply with the 

provisions of this Article 5, except as compliance may be waived in writing in 

a particular instance by Buyer.



      5.1   Satisfaction of Conditions.
            --------------------------

            Each Seller and Heller agrees to cooperate with Buyer and Buyer's 

counsel, accountants and representatives in connection with any steps 

reasonably required to be taken as a part of his or her obligations under this 

Agreement.  Sellers shall use their best efforts to cause the conditions 

precedent to the obligations of Buyer under this Agreement to be satisfied as

                                      -38-
<PAGE>
 
promptly as possible, and will not knowingly undertake a course of action 

inconsistent with this Agreement or which would make any of its 

representations, warranties, agreements or covenants in this Agreement untrue 

in any material respect or any conditions precedent to its obligations under 

this Agreement unable to be satisfied prior to the Closing.

      5.2   Preservation of Business.
            ------------------------

            Sellers shall cause each Company to (a) preserve its current 

business organization, (b)use its best efforts to keep available the services 

of its present employees, consultants and agents, (c) use its best efforts to 

maintain its present business relationships with suppliers, customers, brokers, 

sales representatives and such other persons or firms having business 

relationships on the date hereof with such Company, (d) maintain all of its 

properties in good order and condition, (e) take all steps necessary to 

maintain its intangible assets, including without limitation, its patents, 

trademarks, trade names, copyrights, licenses and any pending application 

therefor, (f) pay its accounts payable and collect its accounts receivable in 

accordance with past business practice, (g) operate the business of the 

Companies in such a manner that the cash portion of the Working Capital 

available on the Closing Date is not less than $500,000, and (h) not take any 

action that would constitute a breach of Section 3.25 hereof.
                                         ------------

      5.3   Conduct of Business.
            -------------------

            Sellers shall cause each Company to operate its business in the 

Ordinary Course of Business consistent with past practice and to refrain from 

introducing any unusual operations or entering into any new line of business.

      5.4   Shareholders Agreements.
            -----------------------

                                      -39-
<PAGE>
 
            No Seller shall, or shall allow any Company to, take any action or 

exercise any right under any Gatan International Shareholders' Agreement which 

would hamper, impede or conflict with the transactions contemplated by this 

Agreement; and each Seller shall, and shall cause each Company to, terminate 

each of the Gatan International Shareholders' Agreements effective on or before 

the Closing Date.

      5.5   Company Options.
            ---------------

            Each Seller shall cause each Company to terminate all of the 

Company options set forth on Schedule 3.3 hereto effective on or before the 
                             ------------

Closing Date, and no Company shall have any further obligation thereunder 

following the Closing.

      5.6   Shareholder Notes.
            -----------------

            Each Seller shall cause each Company to pay in full all notes 

payable to shareholders as set forth on the Financial Statements, on or before 

the Closing Date, and no Company shall have any further obligation thereunder 

following the Closing.

      5.7   Books and Records.
            -----------------

            Sellers shall cause each Company to maintain its books, records and 

accounts in its customary and usual manner, and shall refrain from introducing 

methods of accounting inconsistent with those used in prior periods.

      5.8   Insurance.
            ---------

            Sellers shall cause each Company to maintain in full force and 

effect all policies of insurance in effect on the date of this Agreement.

      5.9   Tax Returns.
            -----------

                                      -40-
<PAGE>
 
            Sellers shall cause each Company to prepare and timely and properly 

file all federal, state, local, foreign and other tax returns and reports and 

amendments thereto required to be filed and pay all taxes which come due on or 

prior to the Closing, other than those for which extensions have been properly 

granted or which are being contested in good faith for which adequate reserves 

have been established.

      5.10  Other Transactions.
            ------------------

            Through the Termination Date (as defined in Article 10 hereof), 

Sellers shall deal exclusively and in good faith with Buyer with regard to the 

transactions contemplated hereby and will not, and will direct each Company and 

its officers, directors, financial advisors, accountants, agents, and counsel 

not to, (i) solicit submission of proposals or offers from any person other 

than Buyer relating to any acquisition of the Companies or all or any material 

part of their stock or assets, or any merger, consolidation or business 

combination with the Companies that would have the effect of preventing the 

consummation of the transactions contemplated by this Agreement (an 

"Acquisition Proposal"), (ii) participate in any negotiations regarding, or 

furnish, in connection with an Acquisition Proposal, any information to any 

other person regarding any Company other than Buyer and its representatives or 

otherwise cooperate in any way or assist, facilitate or encourage any 

Acquisition Proposal by any person other than Buyer, or (iii) enter into any 

agreement or understanding, whether oral or in writing, that would have the 

effect of preventing the consummation of the transactions contemplated by this 

Agreement.

      5.11  Consents.
            --------

                                      -41-
<PAGE>
 
            Sellers shall obtain, prior to the Closing, all consents and 

estoppels necessary or appropriate for the consummation of the transactions 

contemplated hereby and listed on Schedule 5.11 hereto (the "Required 
                                  -------------

Consents").



      6.    CONDITIONS PRECEDENT TO THE OBLIGATIONS OF BUYER
            ------------------------------------------------

      The obligations of Buyer hereunder shall be subject to the following 

conditions, any or all of which may be waived in writing by Buyer:

      6.1   Accuracy of Representations and Warranties.
            ------------------------------------------

            Each of the representations and warranties of Sellers contained 

herein shall be true and correct in all material respects on and as of the 

Closing Date with the same effect as though made on and as of such date, and 

Sellers shall have performed and complied in all material respects with each of 

the agreements, covenants, stipulations, terms and conditions contained herein 

and required to be performed or complied with by Sellers on or prior to the 

Closing Date.

      6.2   No Adverse Change.
            -----------------

            Since the date hereof, there shall have been no material adverse 

change in the financial conditions, assets or liabilities of the Companies, 

taken as a whole.

      6.3   No Loss.
            -------

            Since the date hereof, no Company shall have suffered any loss on 

accounts of fire, flood, accident, strike or other calamity which would have a 

material adverse effect on the financial condition or any assets of the 

Companies in excess of $250,000.

                                      -42-
<PAGE>
 
      6.4   Certificates.
            ------------

            (a)   Gatan International shall have executed and delivered to 

Buyer on the Closing Date a Certificate, dated that date, in form and substance 

reasonably satisfactory to Buyer and its legal counsel, to the effect that each 

of the provisions of Section 6.1, 6.2 and 6.3 of this Article 6 is true and 

correct as of the Closing Date.

            (b)   Gatan International shall have delivered to Buyer a 

certificate of its Secretary certifying the status of record ownership of the 

GI Shares as of the Closing Date. 

      6.5   No Litigation or Injunction.
            ---------------------------

            No action, proceeding or investigation shall have been instituted 

or threatened to set aside the transactions provided for herein or to enjoin or 

prevent the consummation of the transactions contemplated hereby or which would 

have a material adverse effect on the business or assets of the Companies as 

presently conducted.

      6.6   Good Standing.
            -------------

            Gatan International shall have delivered to Buyer a good standing 

certificate and certified charter documents of each of the Companies, each of 

recent date, from their respective jurisdictions of incorporation and good 

standing certificates (or their equivalents) from each jurisdiction in which 

any Company conducts business.

      6.7   Opinion of Counsel.
            ------------------

            Sellers shall have furnished to Buyer and to any of Buyer's lenders 

designated by Buyer, on the Closing Date, opinions of one or more of its 

counsel, substantially in the forms of Exhibits B1, B2 and B3 hereto.
                                       ----------------------

                                      -43-
<PAGE>
 
      6.8   Consents and Proceedings.
            ------------------------

            Sellers shall have obtained all of the Required Consents.

      6.9   Payment of Company Debt.
            -----------------------

            The Company Debt shall be paid in full.

      6.10  Redemption of CARs.
            ------------------

            Gatan International shall redeem from Heller the CARs.

      6.11  Shareholders' Agreements.
            ------------------------

            Each Seller shall have, and shall have caused each Company to, 

terminate all of the Gatan International Shareholders' Agreements on or before 

the Closing Date.

      6.12  Non-Competition Agreement.  Each of the Sellers shall have 
            -------------------------

executed and delivered to Buyer and the Company a Non-Competition Agreement 

substantially in the form of Exhibit C hereto.
                             ---------

      6.13  Landlord Estoppels and Consents.  Each landlord of the Leased 
            -------------------------------

Real Property other than Germany shall have executed an estoppel and consent in 

form and substance reasonably satisfactory to Buyer's lender.

      6.14  Shareholder Notes.
            -----------------

            All notes payable to shareholders set forth on the Financial 

Statements shall have been paid in full.

      6.15  Termination of Options.
            ----------------------

            Sellers shall have caused Gatan International to terminate all 

outstanding options or other rights to receive additional shares, including 

without limitation, options existing under

                                      -44-
<PAGE>
 
the Gatan International Option Plan and the Gatan International Shareholders' 

Agreement, and no Company shall have any further obligations with respect 

thereto.

      6.16  Termination of Right to Receive Additional Shares.
            -------------------------------------------------

            Sellers shall have caused Gatan International to, and William E. 

Offenberg shall, terminate Mr. Offenberg's right to receive any shares of Gatan 

International pursuant to the Offenberg Agreement following the Closing Date.

      6.17  Release.
            -------

            Each Seller and Arizona State Research Institute shall have entered 

into a Release substantially in the form of Exhibit D hereto whereby each 
                                            ---------

Seller shall release Buyer and the Companies from any claim, including any 

right of indemnification or reimbursement, that it may have against any 

Company.

      6.18  Escrow Agreement.
            ----------------

            Sellers shall have entered into the Escrow Agreement with Buyer and 

an independent third-party escrow agent pursuant to which the Escrow Funds will 

be held. 



      7.    CONDITIONS TO THE OBLIGATIONS OF SELLERS
            ----------------------------------------

            The obligations of Sellers shall be subject to the following 

conditions, any or all of which may be waived in writing by Buyer:

      7.1   Accuracy of Representations and Warranties.
            ------------------------------------------

            Each of the representations and warranties of Buyer set forth in 

Article 4 hereof shall be true and correct in all material respects on and as 

of the Closing Date with the same effect as though made on and as of such date, 

and Buyer shall have performed and complied in

                                      -45-
<PAGE>
 
all material respects with each of the agreements, covenants, stipulations, 

terms and conditions contained herein and required to be performed or complied 

with by Buyer on or prior to the Closing Date.

      7.2   Officer's Certificate.
            ---------------------

            An executive officer of Buyer shall have executed and delivered to 

Sellers on the Closing Date a Certificate, dated that date, in form and 

substance reasonably satisfactory to Sellers and their legal counsel, to the 

effect that the provisions of Section 7.1 hereof are true and correct in every 

respect as of the Closing Date.

      7.3   No Injunction.
            -------------

            No action, proceeding or investigation shall have been instituted 

or threatened to set aside the transactions provided for herein or to enjoin or 

prevent the consummation of the transactions contemplated hereby.

      7.4   Good Standing Certificate.
            -------------------------

            Buyer shall have delivered to Sellers a good standing certificate 

of Buyer of recent date from the Secretary of the State of Delaware.

      7.5   Opinion of Counsel.
            ------------------

            Buyer shall have furnished to Sellers, on the Closing Date, an 

opinion of their counsel, substantially in the form of Exhibit E hereto.
                                                       ---------

      7.6   Escrow Agreement.
            ----------------

            Buyer shall have entered into the Escrow Agreement with Sellers and 

an independent third-party escrow agent pursuant to which the Escrow Funds will 

be held.

                                      -46-
<PAGE>
 
      8.    MUTUAL COVENANTS
            ----------------

      8.1   Access to and Use of Information.
            --------------------------------

            From the date hereof to the Closing Date, Buyer and its officers, 

directors, agents, lenders, employees and representatives shall have the right 

at any time during normal business hours (in a manner that does not 

unreasonably interfere with the Companies' business operations) with reasonable 

advance notice and (at Sellers' option) in the presence of Sellers or their 

representatives, to visit and inspect the Companies' offices, plants and 

properties and to examine and make excerpts from their books, contracts, 

accounts and records, and to request and receive from the Companies information 

concerning their business, operations and financial condition.  Should the 

transactions contemplated hereby not be consummated for any reason, all 

information received from the Companies and/or Sellers (and all copies thereof) 

shall be immediately returned to Sellers.  All such information shall be held 

in strict confidence by Buyer and Buyer shall not use any of such information 

itself nor disclose any such information to others without Sellers' written 

consent unless (i) the information in question is, or becomes, public knowledge 

without fault of Buyer, or (ii) was known to Buyer at the time obtained from 

any Company and/or Sellers, or (iii) is rightfully obtained from a third party 

with no restriction on disclosure.

      8.2   338 Election.
            ------------

            Buyer shall not make an election under Section 338 of the IRC 

relating to Buyer's purchase of the GI Shares.

                                      -47-
<PAGE>
 
      8.3   Further Mutual Covenants.
            ------------------------

            Buyer and Sellers shall refrain from taking any action which would 

render any representations or warranties contained in Articles 3 or 4 of this 

Agreement inaccurate as of the Closing Date and shall promptly notify the other 

party upon the happening of any event or taking of any action which renders any 

such representation or warranty inaccurate.  Each party shall promptly notify 

the other of any action, suit or proceeding that shall be instituted or 

threatened against such party to restrain, prohibit, or otherwise challenge the 

legality of any transaction contemplated by this Agreement.



      9.    EXPENSES
            --------

            Except as set forth in the following sentence of this Article 9, 

the Sellers shall pay all fees and expenses incurred by them or the Companies 

in connection with the transactions provided for hereunder (the "Transaction 

Expenses").  Buyer shall pay, at Closing and on Sellers' behalf, the reasonable 

documented fees and expenses of Bowles Hollowell Conner & Co. and of Sellers' 

counsels and accountants, or Buyer shall reimburse Sellers for any payments 

made to such parties prior to the Closing for fees incurred in connection with 

this transaction; provided, however, that Buyer's payment or reimbursement of 

such fees and expenses shall not exceed $1,000,000.  In the event such fees and 

expenses exceed $1,000,000, Sellers shall pay such excess amounts.  Buyer shall 

pay all expenses incurred by it in connection with the transactions provided 

for hereunder, including the fees and expenses of its counsel and accountants, 

and Buyer shall pay the filing fees under the Hart-Scott-Rodino Act.

                                      -48-
<PAGE>
 
      10.   TERMINATION
            -----------

            This Agreement may be terminated and the transactions contemplated 

hereby abandoned prior to Closing:

            (i)   by the mutual consent of Sellers and Buyer;

            (ii)  by Buyer if any condition in Article 6 becomes impossible of 

                  performance or has not been satisfied in full or previously 

                  waived by Buyer in writing at or prior to June 7, 1996 (the 

                  "Termination Date");

            (iii) by Sellers if any condition in Article 7 becomes impossible 

                  of performance or has not been satisfied in full or 

                  previously waived by Sellers in writing at or prior to the 

                  Termination Date;

            (iv)  by either Sellers or Buyer on or before May 15, 1996 in the 

                  event Buyer has not obtained the approval of its board of 

                  directors to enter into the Agreement and to consummate the 

                  transactions contemplated hereby on or before May 15, 1996; 

                  or

            (v)   by Buyer on or before 5:00 p.m. on May 17, 1996 in the event 

                  Buyer has not entered into employment agreements, in form and 

                  substance satisfactory to Buyer, with each of Gubbens, Meyer, 

                  Limesand, Offenberg, Weigand, Evans, Nau, Lindsay, Jing, and 

                  each other party currently party to a change of control 

                  agreement with Gatan International on or before 5:00 p.m. on 

                  May 17, 1996.

            If this Agreement is terminated pursuant to clause (i) of this 

Article 10, all obligations of the parties hereunder shall terminate without 

any further liability or obligation of

                                      -49-
<PAGE>
 
either party to the other, except that Section 8.1 (excluding the first two 

sentences thereof) and Articles 9, 11 and 13 of this Agreement shall survive 

and continue in full force and effect notwithstanding such termination.



      11.   ABSENCE OF BROKER OR FINDER
            ---------------------------

            Sellers represent and warrant to Buyer that no person is acting or 

has acted for them as broker or finder in connection with the transactions 

provided for by this Agreement other than Bowles Hollowell Conner & Co., whose 

fees and expenses shall be paid pursuant to Article 9 hereof.  Buyer represents 

and warrants to Sellers that no person is acting or has acted for it as broker 

or finder in connection herewith.



      12.   SELLERS' REPRESENTATIVE
            -----------------------

            Each Seller hereby constitutes and appoints Morgenthaler Venture 

Partners III ("Sellers' Representative") as his, hers or its true and lawful 

attorney-in-fact, with full power and authority to act on behalf of such Seller 

and in such Seller's name, place and stead for all matters arising in 

connection with this Agreement and as the authorized representative of the 

Sellers to give and accept notices on behalf of the Sellers.  If Morgenthaler 

Venture Partners III shall resign or refuse or become unable to serve, the 

Sellers, acting by a majority, shall appoint a successor Sellers' 

Representative with the same power and authority herein granted to Morgenthaler 

Venture Partners III.  Each Seller agrees to indemnify and to save and hold 

harmless the Sellers' Representative of, from, against and in respect of any 

claim, action, cause of action, cost, liability or expense suffered or incurred 

by or asserted against the Sellers'

                                      -50-
<PAGE>
 
Representative based upon or arising out of the performance by the Sellers' 

Representative of any act, matter or thing pursuant to the appointment herein 

made, except that no Seller shall be held or required to indemnify or to save 

or hold harmless the Sellers' Representative for the gross negligence or 

willful misconduct of the Sellers' Representative in the performance of its 

duties hereunder.



      13.   NEWS RELEASES
            -------------

            No notices to third parties or any publicity, including press 

releases, concerning any of the transactions provided for herein shall be made 

unless planned and coordinated jointly between Buyer and Sellers, provided that 

this provision shall not restrict Buyer from making any press release or public 

announcement which Buyer reasonably believes, based upon advice of counsel, is 

required by law.  Buyer shall give prior written notice, if possible, to 

Sellers' Representative before issuing any required press release or public 

announcement.



      14.   NOTICES
            -------

            Any notice, request, demand or other communication given by any 

party under this Agreement (each a "notice") shall be in writing, may be given 

by a party or its legal counsel, and shall be deemed to be duly given (i) when 

personally delivered, or (ii) upon delivery by United States Express Mail or 

similar overnight courier service which provides evidence of delivery, or (iii) 

when five days have elapsed after its transmittal by registered or certified 

mail, postage prepaid, return receipt requested, addressed to the party to whom 

directed at that party's address as it appears below or another address of 

which that party has given

                                      -51-
<PAGE>
 
notice, or (iv) when transmitted by telex (or equivalent service), the sender 

having received the answer back of the addressee, or (v) when delivered by 

facsimile transmission if a copy thereof is also delivered in person or by 

overnight courier.  Notices of address change shall be effective only upon 

receipt notwithstanding the provisions of the foregoing sentence.

      Notice to Buyer shall be sufficient if given to:

                  Roper Industries, Inc.
                  160 Ben Burton Road
                  Bogart, Georgia 30622
                  Attn: Shanler D. Cronk, Esq.
                        General Counsel

            with copies to:

                  Powell, Goldstein, Frazer & Murphy  
                  191 Peachtree Street, N.E.
                  Atlanta, Georgia  30303 
                  Attn:  Thomas R. McNeill, Esq.

     Notice to Sellers shall be sufficient if given to Sellers' Representative 
at:

                  Morgenthaler Venture Partners III
                  700 National City Bank Building
                  629 Euclid Avenue
                  Cleveland, Ohio  44114
                  Attn:  John D. Lutsi

            with copies to:

                  Buchanan Ingersoll
                  One Oxford Centre
                  301 Grant Street
                  Pittsburgh, Pennsylvania 15219-1410
                  Attn: Thomas G. Buchanan, Esq.

      Notice to Heller shall be sufficient if given to:

                  Heller Financial, Inc.
                  500 West Monroe Street

                                      -52-
<PAGE>
 
                  Chicago, Illinois  60661
                  Attn:  Daniel O'Donnell


      15.   INDEMNIFICATION AND SURVIVAL OF REPRESENTATION AND WARRANTIES
            -------------------------------------------------------------

      15.1  Indemnity by Sellers and Heller.
            -------------------------------

            (a)   Subject to the limitations set forth herein, Sellers shall, 

jointly and severally, indemnify Buyer, the Companies and their respective 

affiliates, directors, officers, shareholders, employees, agents, 

representatives, successors and assigns against any and all claims, losses, 

liabilities, damages and expenses (including reasonable attorney's fees and 

costs of suit) which may be asserted against, incurred or required to be paid 

by Buyer, the Companies or their respective affiliates, directors, officers, 

shareholders, employees, agents, representatives, successors and assigns by 

reason or on account of any Operational Warranties made by Sellers or Heller 

herein being untrue or incorrect.

            (b)   Subject to the limitations set forth herein, Sellers shall, 

severally but not jointly, indemnify Buyer, the Companies and their respective 

affiliates, directors, officers, shareholders, employees, agents, 

representatives, successors and assigns against any and all claims, losses, 

liabilities, damages and expenses (including reasonable attorney's fees and 

costs of suit) which may be asserted against, incurred or required to be paid 

by Buyer, the Companies or their respective affiliates, directors, officers, 

shareholders, employees, agents, representatives, successor and assigns by 

reason or on account of any failure by Sellers or Heller to observe or perform 

their covenants and agreements set forth herein or in the Escrow Agreement.

                                      -53-
<PAGE>
 
            (c)   Subject to the limitations set forth herein, Sellers shall, 

severally but not jointly, and Heller shall severally, indemnify Buyer, the 

Companies and their respective affiliates, directors, officers, shareholders, 

employees, agents, representatives, successors and assigns against any and all 

claims, losses, liabilities, damages and expenses (including reasonable 

attorney's fees and costs of suit) which may be asserted against, incurred or 

required to be paid by Buyer, the Companies and their respective affiliates, 

directors, officers, shareholders, employees, agents, representatives, 

successors and assigns by reason or on account of any Transaction 

Representation made by Sellers or Heller herein being untrue or incorrect.

      15.2  Indemnity by Buyer.
            ------------------

            Buyer shall indemnify Sellers, Heller and their agents, 

representatives, heirs and assigns against any and all claims, losses, 

liabilities, damages and expenses (including reasonable attorney's fees and 

costs of suit) which may be asserted against, incurred or required to be paid 

by Sellers, Heller or their respective agents, representatives, heirs and 

assigns by reason or on account of (a) any representation or warranty made by 

Buyer herein being untrue or incorrect; or (b) any failure by Buyer to observe 

or perform its covenants and agreements herein or in any agreement entered into 

pursuant to this Agreement.

                                      -54-
<PAGE>
 
      15.3  Parameters of Indemnification Liability of Sellers and Heller.
            -------------------------------------------------------------

            (a)   Sellers and Heller shall have no liability for 

indemnification hereunder with respect to any claim resulting from a breach of 

their representations and warranties set forth in this Agreement unless 

Sellers' Representative and Heller have been notified of the claim, in the 

manner provided under Article 14 hereof, within the survival period specified 

in Section 15.5 hereof.

            (b)   Notwithstanding anything to the contrary set forth in this 

Agreement, Sellers and Heller shall not be liable hereunder to Buyer except to 

the extent that the losses, liabilities or damages incurred by Buyer shall 

exceed in the aggregate $250,000, in which event Sellers and Heller shall be 

liable only for such amounts in excess thereof, provided that the foregoing 

deductible shall not be applicable to any indemnification obligation owed to 

Buyer by Sellers or Heller due to a breach of a representation or warranty set 

forth in Section 3.9 relating to tax matters or in Section 3.17 relating to tax 

aspects of employee benefits matters ("Tax Indemnification").

            (c)   Sellers' and Heller's indemnification obligations for 

breaches of Operational Representations or covenants contained in this 

Agreement shall be limited to $5,000,000, and Buyer may only collect on claims 

for breaches of Operational Representations or covenants contained in this 

Agreement pursuant to Section 15.1(a) or Section 15.1(b) hereof from the Escrow 

Funds.  Sellers' and Heller's obligation for Tax Indemnification shall be 

limited to $112,500 and Buyer may only collect on claims for Tax 

Indemnification from the Tax Funds (as defined in the Escrow Agreement).

                                      -55-
<PAGE>
 
            (d)   With respect to Tax Indemnification, the amount recoverable 

by Buyer shall not be reduced as the result of the availability of net 

operating loss to the Companies.

            (e)   Buyer shall not be entitled to Tax Indemnification if Buyer's 

liability arises due to a voluntary disclosure to the IRS by Buyer or any 

Company after the Closing which was not required to be disclosed by any 

applicable law or regulation.

            (f)   Sellers and Heller shall be severally liable for breaches of 

Transactional Representations in the percentages set forth on Schedule 15.3 
                                                              -------------

hereof.  Sellers' indemnification obligations for breaches of Transactional 

Representations shall be limited to the amounts set forth on Schedule 15.3 
                                                             -------------

hereof, less such Seller's and any such Seller's Family Transferees' (as herein 

defined) allocable portion of amounts released to Buyer from, or currently 

subject to a claim by Buyer against, the Escrow Funds (provided that if Sellers 

prevail on any claim by Buyer against the Escrow, each Seller's (and such 

Seller's Family Transferees') allocable portion of the amount no longer subject 

to such claim shall again be subject to claims by Buyer for breaches of 

Transactional Representations).  Heller's indemnification obligation for 

breaches of Transactional Representations shall be limited to $3,200,000.  As 

used herein, "Family Transferees" shall mean, in the case of Stuart Lindsay, 

the Lindsay Family Partnership, and in the case of William Offenberg, Alex 

Offenberg, Aaron Offenberg and Adam Offenberg.

      15.4  Parameters of Indemnification Liability of Buyer.
            ------------------------------------------------

            Buyer shall have no liability for indemnification hereunder with 

respect to any claim resulting from a breach of its representations and 

warranties set forth in this Agreement unless it has been notified of the 

claim, in the manner provided under Article 14 hereof, within the survival 

period specified in Section 15.5 hereof.

                                      -56-
<PAGE>
 
      15.5  Survival.
            --------

            All Operational Warranties contained in or made pursuant to this 

Agreement or in any agreement, certificate, document or statement delivered 

pursuant hereto shall survive the Closing for a period of 12 months; provided, 

however, that, notwithstanding the foregoing, the representations and 

warranties set forth in Section 3.9 relating to tax matters and in Section 3.17 

relating to tax aspects of employee benefit matters shall survive the Closing 

until July 31, 1996.  All Transactional Warranties and all warranties in 

Article 4 hereof shall survive for the applicable statute of limitations.

      15.6  Sole and Exclusive Remedy.
            -------------------------

            Except as set forth in this Section and Section 2.3(d), the parties 

acknowledge and agree that the indemnification provided under this Article 15 

shall be the sole and exclusive remedy of the parties with respect to the 

breach of any covenant, representation or warranty contained herein.  

Notwithstanding the foregoing, any party hereto shall be entitled to pursue (a) 

any injunctive relief, including specific performance, for a breach or default 

hereunder in any court of competent jurisdiction, and (b) any remedy available 

for a breach of any other agreement entered into pursuant to the terms hereof.

      15.7  Indemnification Procedures.
            --------------------------

            Any party making a claim for indemnification under this Article 15 

(the "Indemnitee") shall notify the indemnifying party or parties (the 

"Indemnitor"), or, in the event one or more Sellers are the indemnifying party, 

the Indemnitee shall notify Sellers' Representative, of the claim in writing 

promptly after discovering the claim or receiving written notice of a claim 

against (if by a third party), describing the claim, the amount thereof (if 

known

                                      -57-
<PAGE>
 
and quantifiable), and the basis thereof, provided that the failure to promptly 

give notification shall not constitute a defense to a claim except to the 

extent the Indemnitor can show that it was materially prejudiced by the delay 

in notification.  The obligations and liabilities of the Indemnitor with 

respect to claims resulting from the assertion of liability by any third party 

shall be subject to the following terms and conditions:

            (a)   In the event any action, suit or proceeding is brought 

against the Indemnitee, with respect to which the Indemnitor may have liability 

under the indemnity provisions contained herein, the action, suit or proceeding 

shall be defended (including all proceedings on appeal or for review which 

counsel for the Indemnitee shall deem appropriate) by the Indemnitor at its 

expense.  The Indemnitee shall have the right to employ its own counsel in any 

such case, but the fees and expenses of such counsel shall be at the 

Indemnitee's own expenses unless (i) the Indemnitor has failed or refused to 

perform its obligations under the preceding sentence or (ii) the Indemnitor's 

defense would result in a conflict of interest under which it would not be 

appropriate for counsel for the Indemnitor to represent the Indemnitee, or 

(iii) unless the employment of such counsel and the payment of such fees and 

expenses both shall have been specifically authorized by the Indemnitor in 

connection with the defense of such action, suit or proceeding.  In any such 

case only that portion of such fees and expenses reasonably related to matters 

covered by the indemnity agreements contained herein shall be borne by the 

Indemnitor.  The Indemnitee shall be kept fully informed of such action, suit 

or proceeding at all stages thereof whether or not it is so represented.  The 

Indemnitee shall make available to the Indemnitor and its attorneys and 

accountants all books and records of the Indemnitee relating to such 

proceedings or litigation and the parties hereto agree to render to

                                      -58-
<PAGE>
 
each other such assistance as they may reasonably require of each other in 

order to ensure the proper and adequate defense of any such action, suit or 

proceeding.

            (b)   The Indemnitee shall not make any settlement of any claims 

without the written consent of the Indemnitor.  The Indemnitor shall have the 

right at its own expense to settle any claim on such terms and conditions as 

the Indemnitor may deem acceptable, provided that the settlement does not 

impose any legal obligations upon the Indemnitee.

            (c)   Should Seller's Representative and/or Heller notify Buyer 

that any claim in respect of which the Sellers and/or Heller are the Indemnitor 

is covered in whole or in part by an occurrence policy of insurance (or a 

claims-made policy of insurance which has been converted to an occurrence 

policy through the purchase of so-called tail coverage or any other similar 

arrangement) which was in effect on or prior to the Closing Date, Buyer shall 

cause the Companies to reasonably cooperate with Sellers and Heller (including, 

without limitation, by the filing and pursuit of lawful claims upon insurers).  

Any amounts actually received by the Companies shall either (at Sellers' and 

Heller's election) be retained by the Company and applied to reduce the 

Sellers' and Heller's indemnification obligations or be paid to the Sellers and 

Heller.  If in respect of any claim the Buyer or the Companies shall have any 

right of recourse to a third party, the Sellers and Heller shall be subrogated 

to all such rights.

                                      -59-
<PAGE>
 
      16.   FURTHER ASSURANCES
            ------------------

            Each party shall, upon request of any of the other parties hereto, 

at any time and from time to time execute, acknowledge, deliver and perform all 

such further acts, deeds, assignments, transfers, conveyances, powers of 

attorney and instruments of further assurances as may reasonably be necessary 

or appropriate to carry out the provisions and intent of this Agreement.



      17.   DISPUTE RESOLUTION
            ------------------

      17.1  Agreement to Arbitrate.
            ----------------------

            Buyer, Sellers and Heller will attempt to resolve among themselves 

all disagreements arising under this Agreement within thirty (30) days.  If any 

claim, other than a claim for which a party is seeking an equitable remedy, is 

not resolved within thirty (30) days, such disagreement shall be decided by 

arbitration.  The arbitrator shall base his decision upon the laws of the 

Commonwealth of Pennsylvania.  The arbitration shall be conducted before a 

retired judge selected from the panel of the Judicial Arbitration and Mediation 

Service ("JAMS") and shall be held at the office of JAMS located in Pittsburgh, 

Pennsylvania.  This agreement to arbitrate shall be specifically enforceable 

under applicable law in any court of competent jurisdiction.  Notice of the 

demand for arbitration shall be filed in writing with the other parties to this 

Agreement and with JAMS.  The parties shall select the identity of the 

arbitrator by mutual agreement, but if they cannot agree within 10 days of the 

service of a notice to arbitrate hereunder, JAMS shall appoint the arbitrator 

from its panel.  The demand for arbitration shall in no event be made after the 

date when institution of legal or equitable proceedings based on

                                      -60-
<PAGE>
 
such claim, dispute or other matter in question would be barred by the 

applicable contractual, or other, statute of limitations.  The parties hereto 

elect to provide for pre-arbitration discovery pursuant to the provisions of 

the Federal Rules of Civil Procedure.  The provisions of the Federal Rules of 

Civil Procedure are hereby incorporated into and made a part of this Agreement.

      17.2  Arbitration Schedule.
            --------------------

            Unless modified by the arbitrator in his discretion, the 

arbitration shall proceed upon the following schedule:  (a) within 10 days from 

the service of the notice of the demand for arbitration, the parties shall 

select the arbitrator, (b) within 10 days after selection of the arbitrator, 

the parties shall conduct a pre-arbitration conference at which a schedule of 

pre-arbitration discovery shall be set, all pre-arbitration motions scheduled 

and any other necessary pre-arbitration procedural matters decided; (c) all 

discovery shall be completed within 20 days following the pre-arbitration 

conference; (d) all pre-arbitration motions shall be filed and briefed so they 

may be heard no later than 15 days following the discovery cut-off; (e) the 

arbitration shall be scheduled to commence no later than 10 days after the 

decision of all pre-arbitration motions but in any event no later than three 

months following the service of the demand for arbitration; and (f) the 

arbitrator shall agreed to hear the claim on successive days and shall render 

his written decision within 15 days following the submission of the matter.

      17.3  Arbitration Award.
            -----------------

            Any monetary award of an arbitrator shall include interest at the 

rate of ten percent (10%) per annum, which interest shall accrue from and after 

the 30th day after the initial claim is made until the date the award is paid 

to the prevailing party.  The award rendered by

                                      -61-
<PAGE>
 
the arbitrator shall be final and binding upon the parties and judgment may be 

entered in accordance with applicable law in any court having jurisdiction 

thereof.  The losing party shall bear the fees of its and the prevailing 

party's attorneys, expenses of witnesses and all other expenses connected with 

the presentation of the case.  The cost of arbitration, including the cost of 

the record or transcripts thereof, if any, administrative fees, and all other 

fees involved, shall be borne by the losing party, unless the arbitrator 

otherwise directs.

      17.4  Submission to Jurisdiction.
            --------------------------

            Notwithstanding the foregoing provisions regarding arbitration and 

in no way limiting the requirement that disagreements be resolved solely 

pursuant thereto, each of the parties hereto hereby irrevocably consents and 

submits to the exclusive personal jurisdiction of the courts of the 

Commonwealth of Pennsylvania and the United States District Court for the 

Western District of Pennsylvania over any suit, action or other proceeding 

arising out of or relating to this Agreement and irrevocably agrees that all 

claims with respect to such suit, action or other proceeding may be heard and 

determined in either such court.



      18.   MISCELLANEOUS
            -------------

      18.1  Governing Law.
            -------------

            This Agreement shall be governed by the laws of the Commonwealth of 

Pennsylvania without regard to any jurisdiction's conflicts of laws provisions.


      18.2  Counterparts/Use of Facsimiles.
            ------------------------------

            This Agreement may be executed in one or more counterparts, each of 

which shall be deemed an original, but all of which together shall constitute a 

single agreement.  The

                                      -62-
<PAGE>
 
reproduction of signatures by means of a telecopying device shall be treated as 

though such reproductions are executed originals and each party hereto 

covenants and agrees to provide the other parties with a copy of this Agreement 

bearing original signatures within 5 days following transmittal by facsimile.

      18.3  Entire Agreement.
            ----------------

            This Agreement constitutes the entire agreement of the parties 

hereto respecting its subject matter and supersedes all negotiations, 

preliminary agreements and prior or contemporaneous discussions and 

understandings of the parties hereto in connection with the subject matter 

hereof.  This Agreement may be amended, modified, or supplemented only by a 

writing signed by all parties by their duly authorized representatives.  Any 

party may waive the benefit of a term or condition of this Agreement and such 

waiver will not be deemed to constitute the waiver of another breach of the 

same, or any other, term or condition.  The headings in this Agreement are for 

reference purposes only and shall not affect the meaning or interpretation of 

any provision of this Agreement.

      18.4  No Presumption Against Draftsman.
            --------------------------------

            There shall be no presumption against any party on the ground that 

such party or its counsel was responsible for preparing this Agreement or any 

part hereof.

                                      -63-
<PAGE>
 
      18.5  Successors and Assigns.
            ----------------------

            This Agreement shall be binding upon and inure to the benefit of 

the heirs, executors, administrators, successors and assigns of the parties 

hereto, but shall not be assigned by any party hereto without the prior written 

consent of the other parties.

      18.6  Knowledge.
            ---------

            The term "knowledge" as used in this Agreement shall mean with 

respect to a Seller, the actual knowledge upon reasonable inquiry to 

appropriate persons in the Company of such Seller or, with respect to the 

Companies, the actual knowledge upon reasonable inquiry to appropriate persons 

in the Company of any Seller or Paul D. Limesand, Vance Nau or, with respect to 

manufacturing matters, L. Evans.

                                      -64-
<PAGE>
 
            IN WITNESS WHEREOF, each of the parties has caused this Agreement 

to be executed by its dully authorized officer as of the date first above 

written.



                                    ROPER INDUSTRIES, INC.


                                    By:                                   
                                          --------------------------------
                                          Name:                           
                                               ---------------------------
                                          Title:                          
                                                --------------------------


                                    MORGENTHALER VENTURE PARTNERS III


                                    By:   Morgenthaler Management Partners, III
                                          it General Partner



                                    By:                                   
                                          --------------------------------
                                          John D. Lutsi, General Partner


                                                                          
                                    --------------------------------------
                                    G. Rex Swann


                                                                          
                                    --------------------------------------
                                    Peter R. Swann


                                                                          
                                    --------------------------------------
                                    Ondrej Krivanek


                                                                          
                                    --------------------------------------
                                    William E. Offenberg


                                                                          
                                    --------------------------------------
                                    Stuart M. Lindsey

<PAGE>
 
                                    --------------------------------------
                                    Tianwei Jing



                                    HELLER FINANCIAL, INC.


                                    By:                                   
                                          --------------------------------
                                          Name:                           
                                               ---------------------------
                                          Title:                          
                                                --------------------------

<PAGE>
 
      The execution and delivery of this Agreement by the signatories hereto, 
and the performance by such signatories of their obligations hereunder, is 
hereby consented to on this __ day of _______________, 1996.



                                                                          
                                    --------------------------------------

                                    Print Name:                           
                                               ---------------------------



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