Issued Patents 2016
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9331621 | Electric power saving device for motor of pump jacks apparatus | — | 2016-05-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9331621 | Electric power saving device for motor of pump jacks apparatus | — | 2016-05-03 |