Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882976 | Brake booster | Andreas Abbing, Hannes Bertling, George Kehl, Robert Mergenthaler, Dietmar Rischen +2 more | 1989-11-28 |
| 4796667 | Brake pressure control valve | Georg Kehl | 1989-01-10 |