Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6165074 | Torsional vibration damper | Alfred Schraut, Helmuth Weissenberger, Karl Hubert | 2000-12-26 |
| 6095308 | Clutch plate for motor vehicle clutches | Alfred Schraut, Helmuth Weissenberger | 2000-08-01 |