Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4313328 | Providing cardan and universal joint-type shafts with gearing | Manfred Janssen, Volker Schmidt | 1982-02-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4313328 | Providing cardan and universal joint-type shafts with gearing | Manfred Janssen, Volker Schmidt | 1982-02-02 |