Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6729422 | Detachable transmission mechanism for a wheel chair and driving device thereof | Simon Chu, Chih-Chin Hsieh | 2004-05-04 |
| 6702051 | Detachable transmission mechanism for a wheel chair | Simon Chu, Chih-Chin Hsieh | 2004-03-09 |
| 6695081 | Build-up light motor driven car | Simon Chu, Chih-Chin Hsieh | 2004-02-24 |