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Metal Carbides Corp

Metal Carb
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2228871A Diamond bearing tool and process of making same Expired / Lapsed 1939-03-14 1941-01-14 0 Details
US2167544A Method of making hard metal articles Expired / Lapsed 1937-09-09 1939-07-25 0 Details
US2068848A Method of forming diamondiferous abrasive compositions Expired / Lapsed 1934-02-23 1937-01-26 0 Details