KELLER TOOL CO
KELLER TOOActive Patents
0
Total Holdings
11
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2575640A | Lubricating system for air motors | Expired / Lapsed | 1947-11-08 | 1951-11-20 | 0 | Details |
| US2543942A | Power-operated nail driver | Expired / Lapsed | 1947-11-08 | 1951-03-06 | 0 | Details |
| US2488992A | Dashpot for portable tools | Expired / Lapsed | 1947-05-21 | 1949-11-22 | 0 | Details |
| US2464997A | Lubrication of rotary expansible chamber sliding vane tool … | Expired / Lapsed | 1944-01-08 | 1949-03-22 | 0 | Details |
| US2439756A | Impact clutch | Expired / Lapsed | 1943-07-09 | 1948-04-13 | 0 | Details |
| US2402212A | Operation controlling means for pressure fluid actuated too… | Expired / Lapsed | 1942-08-12 | 1946-06-18 | 0 | Details |
| US2354841A | Operation controlling means for pressure fluid actuated too… | Expired / Lapsed | 1939-12-07 | 1944-08-01 | 0 | Details |
| US2344739A | Coupling device | Expired / Lapsed | 1942-08-01 | 1944-03-21 | 0 | Details |
| US2344740A | Hose coupling device | Expired / Lapsed | 1942-08-01 | 1944-03-21 | 0 | Details |
| US646702A | Rotary motor. | Expired / Lapsed | 1899-08-26 | 1900-04-03 | 0 | Details |
| US644608A | Ball-bearing. | Expired / Lapsed | 1899-02-07 | 1900-03-06 | 0 | Details |