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Cleveland Graphite Bronze Co

Cleveland
Active Patents
0
Total Holdings
8

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2284785A Frictional material and method of making same Expired / Lapsed 1939-04-10 1942-06-02 0 Details
US2219054A Bearing Expired / Lapsed 1938-11-22 1940-10-22 0 Details
US2161597A Method of bonding powdered metallic material Expired / Lapsed 1936-07-22 1939-06-06 0 Details
US1923514A Low limit bearing and method of making same Expired / Lapsed 1930-04-10 1933-08-22 0 Details
US1880454A Apparatus for making bearings Expired / Lapsed 1929-02-25 1932-10-04 0 Details
US1702927A Bearing material and method of making same Expired / Lapsed 1922-03-27 1929-02-19 0 Details
US1555214A Bearing Expired / Lapsed 1924-02-09 1925-09-29 0 Details
US1469793A Method of installing bushings Expired / Lapsed 1922-04-15 1923-10-09 0 Details