Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5480274 | Aircraft tug without tow bar | Wilhelm Franken, Gerhard Weigardt | 1996-01-02 |
| 5054714 | Aircraft tractor without tow-bar with adjustable tow arms | Wilhelm Franken, Dieter Pohe | 1991-10-08 |
| 5051052 | Aircraft tractor without tow-bar | Wilhelm Franken, Dieter Pohe | 1991-09-24 |