Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881750 | ATB shock absorber | — | 1989-11-21 |
| 4842291 | Enclosed multiple speed drive for low maintenance chain driven bicycles | — | 1989-06-27 |
| 4826190 | Dual wheel driven tricycle with a fully enclosed multiple speed drive | — | 1989-05-02 |
| 4815763 | Shock absorber for mountain bicycles | — | 1989-03-28 |