Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8720310 | Socket wrench with an energy-saving function | Yen-Hui Wang, Tsun-Te Wang | 2014-05-13 |
| 8516927 | Socket wrench with an energy-saving function | Yen-Hui Wang, Chin-He Wang | 2013-08-27 |