Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4572929 | Assembly for the transmission of electrical energy to vehicles | Christoph Nitschke, Helmut Wehrberger | 1986-02-25 |
| 4406930 | Trolley wire section insulator with two parallel insulating sliding strips | Georg Muller, Christoph Nitschke, Helmut Wehrberger, Klaus Kaesewinkel | 1983-09-27 |