Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6675683 | Cutter releasing mechanism for direct connected spindle of machine tool | Hung-Chieh Huang, Chih-Yang Hu, En-Sheng Chang | 2004-01-13 |
| 4595209 | Skateboard | — | 1986-06-17 |