Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10677055 | Fractured roof 110 mining method entry-side anti-collapsed structure | Zhibiao Guo | 2020-06-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10677055 | Fractured roof 110 mining method entry-side anti-collapsed structure | Zhibiao Guo | 2020-06-09 |