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American Well Works

American W
Active Patents
0
Total Holdings
5

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2245035A Centrifugal sludge pump Expired / Lapsed 1939-02-13 1941-06-10 0 Details
US1839126A Impeller Expired / Lapsed 1929-05-17 1931-12-29 0 Details
US1754992A Centrifugal pump Expired / Lapsed 1926-12-06 1930-04-15 0 Details
US1334461A Centrifugal pump Expired / Lapsed 1917-10-29 1920-03-23 0 Details
US1234948A Centrifugal pump. Expired / Lapsed 1915-09-13 1917-07-31 0 Details