Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10286457 | Four-directional drilling machine | Jinling Yang, Li Yang, Yingfeng Wang, Jiansheng Wang, Yongwang Zhao | 2019-05-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10286457 | Four-directional drilling machine | Jinling Yang, Li Yang, Yingfeng Wang, Jiansheng Wang, Yongwang Zhao | 2019-05-14 |