Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9970420 | Dual horsehead block and tackle pumping unit | Jin Wang, Zijiang Yang | 2018-05-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9970420 | Dual horsehead block and tackle pumping unit | Jin Wang, Zijiang Yang | 2018-05-15 |