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CUSIP NO. 45815R 10 0 SCHEDULE 13D Page 19 of 20 Pages
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Exhibit 4
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JOINT FILING AGREEMENT
In accordance with Rule 13d-1 (f)(1)(iii) under the Securities Exchange Act
of 1934, as amended, the persons named below agree to the Joint Filing on behalf
of each of them of a Schedule 13D with respect to the Common Shares of
Intelligent Controls, Inc., a Maine corporation, and any further amendments
thereto. This Joint Filing Agreement shall be filed as an Exhibit to the
Statement on Schedule 13D.
Dated May __, 1998
AMPERSAND SPECIALTY MATERIALS AND
CHEMICALS ill LIMITED PARTNERSHIP
By: ASMC-III Management Company
Limited Partnership
By: ASMC-III MCLP LLP, its general partner
By: /s/ Xxxxxxx X. Xxx
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Xxxxxxx X. Xxx, General Partner
AMPERSAND SPECIALTY MATERIALS
AND CHEMICALS III COMPANION FUND
LIMITED PARTNERSHIP
By: ASMC-III Management Company
Limited Partnership
By: ASMC-III MCLP LLP, its general partner
By: /s/ Xxxxxxx X. Xxx
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Xxxxxxx X. Xxx, General Partner
ASMC-III MANAGEMENT COMPANY
LIMITED PARTNERSHIP
By: /s/ Xxxxxxx X. Xxx
------------------------------------
Xxxxxxx X. Xxx, General Partner
ASMC-III MCLP LLP
By: /s/ Xxxxxxx X. Xxx
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CUSIP NO. 45815R 10 0 SCHEDULE 13D Page 20 of 20 Pages
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Xxxxxxx X. Xxx, General Partner
/s/ Xxxxxxx X. Xxxxxxx
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Xxxxxxx X. Xxxxxxx
/s/ Xxxxx X. Xxxxxx
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Xxxxx X. Xxxxxx
/s/ Xxxxxx X. Xxxxxxxx
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Xxxxxx X. Xxxxxxxx
/s/ Xxxxxxx X. Xxx
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Xxxxxxx X. Xxx
