Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11555700 | Quick fixing device for measuring tunnel peripheral convergence and application method thereof | Yaqiong WANG, Rui Ren, Jie Li, Yiwei Cui, Zhifeng Wang +2 more | 2023-01-17 |