Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4652187 | Clamping chuck for holding drilling and/or cutting tools | Gerhard Rumpp, Manfred Spieth | 1987-03-24 |
| 4491445 | Tool holder for hammer drills | Josef Hunger, Wilhelm Klueber | 1985-01-01 |
| 4365962 | Safety clutch for power-operated hand-held tool | — | 1982-12-28 |
| 4325436 | Hammer drill or chipping hammer device | Martin Richter | 1982-04-20 |