Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6971662 | Towing device for vehicles | Harald Frischkorn, Gunther Hartmann, Frank Wagner | 2005-12-06 |
| 6935822 | Detachable fastener including a screw element and a securing ring | Gunther Hartmann, Frank Wagner | 2005-08-30 |