Issued Patents 2024
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11891892 | Square pile construction method and equipment of a rotary drilling rig | Biao Zheng, Jie Zheng | 2024-02-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11891892 | Square pile construction method and equipment of a rotary drilling rig | Biao Zheng, Jie Zheng | 2024-02-06 |