Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883031 | Internal combustion engine | Klaus-Erwin Groeger | 1989-11-28 |
| 4829942 | Intake system for a multi-cylinder internal-combustion engine | — | 1989-05-16 |
| 4828536 | Chain tensioner | — | 1989-05-09 |
| 4823748 | Actuating arrangement | Klaus-Erwin Groeger | 1989-04-25 |
| 4805566 | Arrangement for influencing the control times of valves | — | 1989-02-21 |