Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10247001 | Anti-spalling blocking bar for large cross-section coal gallery excavation work surface and supporting method | Shengqi Yang, Yuanchao Zhang | 2019-04-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10247001 | Anti-spalling blocking bar for large cross-section coal gallery excavation work surface and supporting method | Shengqi Yang, Yuanchao Zhang | 2019-04-02 |