Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669474 | Hydrodynamic torque converter with lock-up clutch | Uwe Dehrmann, Hans-Wilhelm Wienholt | 1997-09-23 |
| 5667043 | Hydrodynamic torque converter with lockup clutch | Uwe Dehrmann, Hans-Wilhelm Wienholt | 1997-09-16 |