Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840150 | Valve-actuating lever for internal combustion engines | Horst Zielke | 1989-06-20 |
| 4816011 | Tensioning device for belts and the like, in particular on motor vehicle engines | — | 1989-03-28 |
| 4813915 | Tensioning device for belts and the like, in particular on motor vehicle engines | — | 1989-03-21 |