Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5222916 | Eccentrically operated speed-variating means with broadened speed variation | — | 1993-06-29 |
| 5127883 | Homogeneous speed-variating means as eccentrically operated | — | 1992-07-07 |
| 4892506 | Synergetic speed-variating means as eccentrically operated | — | 1990-01-09 |
| 4889354 | Eccentrically operating speed-variating means for bicycle | — | 1989-12-26 |
| 4549874 | Automatic speed variating means for bicycle | — | 1985-10-29 |