Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4410074 | Friction clutch assembly | Oswald Friedmann | 1983-10-18 |
| 4381052 | Clutch disk assembly | — | 1983-04-26 |
| 4368810 | Friction clutch | Karl Keck, Dieter Pretzel | 1983-01-18 |
| 4367703 | Apparatus for engaging and disengaging discrete crankshafts in internal combustion engines | Oswald Friedmann | 1983-01-11 |
| 4367704 | Internal combustion engine with separable crankshafts | Oswald Friedmann | 1983-01-11 |
| 4347813 | Apparatus for starting an internal combustion engine | Hugo-Werner Geschka | 1982-09-07 |
| 4238018 | Disengaging unit for drawing disengageable friction clutches, especially for motor vehicles | — | 1980-12-09 |
| 4238019 | Friction clutch | Oswald Dubiel | 1980-12-09 |