Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5718140 | Method for manufacturing a rotationally symmetrical work-piece of steel | Karl-Heinz Koestermeier, Jurgen Koppel | 1998-02-17 |
| 5384949 | Torque transmitting structure and method of manufacture | Helmut A. Wodrich | 1995-01-31 |