Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797601 | Abutment force adjustable windshield wiper arrangement | Ludwig Hasenknopf | 1989-01-10 |
| 4282445 | Circuit arrangement for a window-cleaning installation of motor vehicles | — | 1981-08-04 |