Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10385692 | Apparatus and method for pre-loading mechanical constant-resistance single prop | Jixiong Zhang, Qiang Zhang, Yanlong Chen, Hao Yan | 2019-08-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10385692 | Apparatus and method for pre-loading mechanical constant-resistance single prop | Jixiong Zhang, Qiang Zhang, Yanlong Chen, Hao Yan | 2019-08-20 |