Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342275 | Fin rudder for ships | Joachim Brix | 1982-08-03 |
| 4316721 | Method for producing a thrust in manoeuvering engines for a watercraft and a manoeuvering engine constructed for the same | Fred Petersen | 1982-02-23 |