Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9630261 | Drill bit structure | Shih-Feng Chiu, Nick Sung-Hao CHIEN, Feng-Yu Lin | 2017-04-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9630261 | Drill bit structure | Shih-Feng Chiu, Nick Sung-Hao CHIEN, Feng-Yu Lin | 2017-04-25 |