Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4667793 | Friction clutch and diaphragm spring therefor | Martin Kunz | 1987-05-26 |
| 4368810 | Friction clutch | Paul Maucher, Karl Keck | 1983-01-18 |
| 4368811 | Friction clutch | Oswald Dubiel | 1983-01-18 |
| 4256210 | Friction clutch | Oswald Dubiel | 1981-03-17 |