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CONS ASHCROFT HANCOCK CO

CONS ASHCR
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2073838A Pneumatic control system Expired / Lapsed 1935-04-26 1937-03-16 0 Details
US1925515A Recording instrument Expired / Lapsed 1931-10-20 1933-09-05 0 Details
US1737588A Incased adjustable weight-loaded valve Expired / Lapsed 1925-12-10 1929-12-03 0 Details