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Crown Machine and Tool Co Inc

Crown Mach
Active Patents
0
Total Holdings
4

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2951260A Molding mechanism and heating arrangement Expired / Lapsed 1957-10-01 1960-09-06 0 Details
US2928125A Method of and injection nozzle for preventing excessive hea… Expired / Lapsed 1956-05-31 1960-03-15 0 Details
US2860374A Stripper mechanism for injection molding Expired / Lapsed 1955-09-23 1958-11-18 0 Details
US2828509A Plastic molding machines Expired / Lapsed 1954-11-03 1958-04-01 0 Details