Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10677317 | Rotation-movement conversion linear gear mechanism | Yueling Lv | 2020-06-09 |
| 10550914 | Concave-convex arc line gear mechanism for parallel shaft transmission | Li Yao | 2020-02-04 |