Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4426585 | Circuit for generating a rotating field for a three phase synchronous motor serving as a flywheel starter for a vehicle internal combustion engine | — | 1984-01-17 |
| 4401200 | Arrangement for automatic clutch actuation | Paulus Heidemeyer, Frank Zimmermann, Hartmut Werner | 1983-08-30 |
| 4295551 | Automatic clutch system | Frank Zimmermann, Paulus Heidemeyer | 1981-10-20 |