Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10365081 | Checking tool for measuring distance between adjacent sinking grooves in inner hole of mechanical part | Jun Qin, Hongjun Zhao, Yi Dong, Yong Zhang | 2019-07-30 |
| 8418521 | Double closed hydraulic mould stand | Juchen Xia, Guoan Hu, Xinyun Wang, Junsong Jin, Yi Dong | 2013-04-16 |