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Pioneer Instrument Co Inc

Pioneer In
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2089987A Means for operating a repeating device Expired / Lapsed 1930-05-08 1937-08-17 0 Details
US2053409A Means for repeating angular movements Expired / Lapsed 1930-08-15 1936-09-08 0 Details
US1910093A Navigation calculator Expired / Lapsed 1924-05-12 1933-05-23 0 Details