Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474657 | Chuck device | Wei-Chuan Fan-Chiang, Mu-Mao Tseng | 2002-11-05 |
| 5531139 | Unidirectional drive tool mechanism | Wei-Chuan Fanchang | 1996-07-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474657 | Chuck device | Wei-Chuan Fan-Chiang, Mu-Mao Tseng | 2002-11-05 |
| 5531139 | Unidirectional drive tool mechanism | Wei-Chuan Fanchang | 1996-07-02 |