Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6247705 | Manual tightened chuck | Guimo Yang, Shengzhi Yang, Mingquan Cai, Lianhai Long | 2001-06-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6247705 | Manual tightened chuck | Guimo Yang, Shengzhi Yang, Mingquan Cai, Lianhai Long | 2001-06-19 |