Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872624 | Drive arrangement for a vehicle having a propeller | Juergen Hawener, Rolf V. Sivers | 1989-10-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872624 | Drive arrangement for a vehicle having a propeller | Juergen Hawener, Rolf V. Sivers | 1989-10-10 |