<PAGE>
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20059
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 3)
NAME OF ISSUER: Industrial Scientific Corporation
TITLE OF CLASS OF SECURITIES: Common Stock
CUSIP NUMBER: 45631G-10-6
Check the following box if a fee is being paid with this statement: [ ]
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________________________________________________________________________________
(1) Names of Reporting Persons Kenton E. McElhattan
SS or IRS Identification Nos. SSN: ###-##-####
of Above Person
________________________________________________________________________________
(2) Check the Appropriate Box (See Instructions):
(a)____________________________________
if a Member of a Group
(See Instructions)
(b)_______________X________________
Membership in any group is
disclaimed
- --------------------------------------------------------------------------------
(3) SEC Use Only
- --------------------------------------------------------------------------------
(4) Citizenship or Place United States of America
of Organization
- --------------------------------------------------------------------------------
Number of Shares (5) Sole Voting Power 694,960
Beneficially
Owned by Each (6) Shared Voting Power 764,400*
Reporting Person
With (7) Sole Dispositive Power 694,960
(8) Shared Dispositive 764,400*
Power
________________________________________________________________________________
(9) Aggregate Amount Beneficially Owned by Each
Reporting Person 1,459,360
- --------------------------------------------------------------------------------
(10) Check if the Aggregate Amount in Row (9)
Excludes Certain Shares Not Applicable
- --------------------------------------------------------------------------------
(11) Percent of Class Represented by Amount in Row 9 43.4
- --------------------------------------------------------------------------------
(12) Type of Reporting Person IN
(See Instructions)
* See Exhibit A
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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
(Under the Securities and Exchange Act of 1934)
Item 1(a) Name of Issuer:
--------------
Industrial Scientific Corporation
Item 1(b) Address of Issuer's Principal Executive Offices:
------------------------------------------------
1001 Oakdale Road
Oakdale, PA 15071
Item 2(a) Name of Person Filing:
----------------------
Kenton E. McElhattan
Item 2(b) Address of Principal Business Office:
-------------------------------------
Industrial Scientific Corporation
1001 Oakdale Road
Oakdale, Pennsylvania 15071
Item 2(c) Citizenship:
------------
United States of America
Item 2(d) Title of Class of Securities:
-----------------------------
Common Stock, Par Value $.01 Per Share
Item 2(e) CUSIP Number:
-------------
45631G-10-6
Item 3 Statement filed pursuant to Rules 13d-1(b), or
13d-2(b).
Not Applicable.
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Item 4 Ownership:
----------
(a) Amount beneficially owned: 1,459,360*
(b) Percent of class: 43.4
(c) Number of shares as to
which person has:
(i) Sole power to vote or
to direct the vote: 694,960
(ii) Shared power to vote
or to direct the vote: 764,400*
(iii) Sole power to dispose or
to direct the disposition
of shares: 694,960
(iv) Shared power to dispose or to
direct the disposition
of shares: 764,400*
Item 5 Ownership of Five Percent or Less of a Class:
---------------------------------------------
Not Applicable.
Item 6 Ownership of More than Five Percent on Behalf of Another Person:
----------------------------------------------------------------
Not Applicable.
Item 7 Identification and Classification of the Subsidiary Which
---------------------------------------------------------
Acquired the Security Being Reported by the Parent Holding
----------------------------------------------------------
Company:
--------
Not Applicable.
Item 8 Identification and Classification of Members of the Group:
----------------------------------------------------------
Not Applicable.
Item 9 Notice of Dissolution of Group:
-------------------------------
Not Applicable.
Item 10 Certification:
--------------
Not Applicable.
* See Exhibit A
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SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.
Date: February 13, 1997
/s/ Kenton E. McElhattan
- -------------------------------------------
Kenton E. McElhattan
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EXHIBIT A
---------
* Includes 750,000 shares held by Florence L. McElhattan, the wife of
reporting person, and 14,400 shares held in a charitable foundation of
which the reporting person is a Director. The reporting person disclaims
beneficial ownership of such shares.
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