Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6440033 | Gearbox assembly for deep oil well pumps | Hans K. Wefers | 2002-08-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6440033 | Gearbox assembly for deep oil well pumps | Hans K. Wefers | 2002-08-27 |