Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4942786 | Continuously variable transmission system with by-pass check valves | — | 1990-07-24 |
| 4795406 | Asymmetrical infinitely variable transmission system | Manfred Rattunde | 1989-01-03 |