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INSTRUMENTATION INDUSTRIES Inc

INSTRUMENT
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Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US4210174A Positive pressure valves Expired / Lapsed 1978-05-30 1980-07-01 8 Details
US3953060A Slip-proof coupling device Expired / Lapsed 1971-09-20 1976-04-27 2 Details