Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10907474 | Reaming and self-rotating anchor rod and using method thereof | Nong Zhang, Zhengzheng Xie | 2021-02-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10907474 | Reaming and self-rotating anchor rod and using method thereof | Nong Zhang, Zhengzheng Xie | 2021-02-02 |