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Campbell Wyant and Cannon Foundry Co

Campbell W
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US1998708A Internal combustion engine Expired / Lapsed 1934-01-15 1935-04-23 0 Details
US1917872A Centrifugal casting machine Expired / Lapsed 1931-11-09 1933-07-11 0 Details