Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854751 | Antifriction bearing | Volker Grassmuck, Benno Jorg | 1989-08-08 |
| 4852424 | Flywheel assembly | Volker Grassmuck, Benno Jorg | 1989-08-01 |
| 4850244 | Flywheel | Hans-Gerd Eckel, Volker Grassmuck, Benno Jorg, Klaus Kurr | 1989-07-25 |