Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888668 | Mirror light unit | — | 1989-12-19 |
| 4485682 | Transducer for torque and/or angular displacement measurement, especially in power screwdrivers | Reinhold Stroezel, Wilhelm Schwarze, Alfred Hettich, Wolfgang Raidt | 1984-12-04 |
| 4366871 | Motor-driven screwdriver | Herbert Dieterle, Alfred Hettich | 1983-01-04 |