Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478711 | Apparatus for changing speed of bicycles | — | 2002-11-12 |
| 6390487 | Driving direction changing apparatus of bicycle hub | — | 2002-05-21 |
| 6383107 | Apparatus for changing direction of driving force for bicycles | — | 2002-05-07 |
| 6383108 | Apparatus for changing direction of driving force for bicycles | — | 2002-05-07 |