Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D689913 | Abrasive disc with a distribution of holes | Zhiwei Fu, Xiuyong Shang | 2013-09-17 |
| D686255 | Abrasive disc with a distribution of holes | Zhiwei Fu, Xiuyong Shang | 2013-07-16 |