WILLIAM H KELLER Inc
WILLIAM HActive Patents
0
Total Holdings
6
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2159232A | Pressure fluid motor | Expired / Lapsed | 1937-10-28 | 1939-05-23 | 0 | Details |
| US2099280A | Portable pressure fluid actuated tool | Expired / Lapsed | 1933-10-21 | 1937-11-16 | 0 | Details |
| US1913003A | Rotary machine | Expired / Lapsed | 1930-03-15 | 1933-06-06 | 0 | Details |
| US1640620A | Governor for pressure-fluid-operated tools | Expired / Lapsed | 1925-08-29 | 1927-08-30 | 0 | Details |
| US1633501A | Impact tool | Expired / Lapsed | 1922-10-10 | 1927-06-21 | 0 | Details |
| US1465770A | Fluid-pressure-actuated tool | Expired / Lapsed | 1920-08-02 | 1923-08-21 | 0 | Details |