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Joy Manufacturing Co

Joy Manufa
Active Patents
0
Total Holdings
10

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3017228A Rotary supporting device Expired / Lapsed 1959-09-23 1962-01-16 0 Details
US2697914A Releasable wedge type roof bolt Expired / Lapsed 1949-10-11 1954-12-28 0 Details
US2644669A Mobile drilling apparatus Expired / Lapsed 1950-01-20 1953-07-07 0 Details
US2562881A Hydraulically driven vehicle and cable reel motor control m… Expired / Lapsed 1945-02-15 1951-08-07 0 Details
US2488945A Fan and motor support Expired / Lapsed 1944-05-05 1949-11-22 0 Details
US2484846A Pressure control device Expired / Lapsed 1942-05-18 1949-10-18 0 Details
US2477701A Variable feed for drilling apparatus Expired / Lapsed 1944-03-25 1949-08-02 0 Details
US2427032A Fan and motor housing Expired / Lapsed 1943-09-01 1947-09-09 0 Details
US2425000A Apparatus for automatically controlling pressure and temper… Expired / Lapsed 1943-03-27 1947-08-05 0 Details
US2410458A Drilling apparatus Expired / Lapsed 1945-01-09 1946-11-05 0 Details