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American Rolling Mill Co

American R
Active Patents
0
Total Holdings
8

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2315709A Off-gauge totalizer Expired / Lapsed 1940-05-10 1943-04-06 0 Details
US2212481A Multicellular expanded material and process of manufacturin… Expired / Lapsed 1937-12-08 1940-08-20 0 Details
US2206597A Coating metal articles Expired / Lapsed 1937-12-07 1940-07-02 0 Details
US2074812A Production of sheets and other shapes from molten metal Expired / Lapsed 1935-07-15 1937-03-23 0 Details
US2066702A Automatic sheet measuring and sorting device Expired / Lapsed 1932-02-10 1937-01-05 0 Details
US1977516A Abrasive cleaning mechanism and process Expired / Lapsed 1930-06-18 1934-10-16 0 Details
US1793280A Sheet-metal pipe Expired / Lapsed 1922-05-22 1931-02-17 0 Details
US1743615A Soldering process Expired / Lapsed 1927-02-25 1930-01-14 0 Details