Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4216684 | Hybrid drive for motor vehicles | Faust Hagin, Hans Hagen, Hans Drewitz, Erich Knirsch | 1980-08-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4216684 | Hybrid drive for motor vehicles | Faust Hagin, Hans Hagen, Hans Drewitz, Erich Knirsch | 1980-08-12 |