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Sperry Products Inc

Sperry Pro
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2784359A Digital curve generator Expired / Lapsed 1953-09-22 1957-03-05 0 Details
US2682766A Ultrasonic inspection device Expired / Lapsed 1950-08-17 1954-07-06 0 Details
US2332288A Compensating potentiometer Expired / Lapsed 1942-04-09 1943-10-19 0 Details