Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11035093 | Multi-degree-of-freedom automatic center-adjusting device, hydraulic quick-coupling device, and rescue equipment | Fei Ma, Chun JIN, Yuchao Liu, Yanhua Shen | 2021-06-15 |