Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11008860 | Equipment system for no-roadway no-coal-pillar retained roadway mining method | Manchao He, Jun Yang, Shangyuan Chen | 2021-05-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11008860 | Equipment system for no-roadway no-coal-pillar retained roadway mining method | Manchao He, Jun Yang, Shangyuan Chen | 2021-05-18 |