Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11555351 | Spiral impact drilling machine applicable to rock and soil and construction method | Jinqing Jia, Lihua Zhang, Xing Gao, Xiangsheng Chen, Xuchun Wang +2 more | 2023-01-17 |