Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807491 | Pedal crank as well as a pedal crank drive for bicycles or the like and a mounting for such a pedal crank drive | — | 1989-02-28 |
| 4355603 | Internal combustion engine | August Stuckenbrok | 1982-10-26 |