Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847135 | Composite material for sliding surface bearings | Jurgen Braus, Wolfgang Bickle | 1989-07-11 |
| 4836695 | Composite sliding surface bearing | Wolfgang Bickle, Wilhelm Lankreijer | 1989-06-06 |