Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7246801 | Self-tightening keyless chuck | Xianming Tian, Huijun Pei, Qiaoyu Xu | 2007-07-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7246801 | Self-tightening keyless chuck | Xianming Tian, Huijun Pei, Qiaoyu Xu | 2007-07-24 |