Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8056640 | Hydraulic head clamp assembly for mobile drill rig | Melvin P. Kejr | 2011-11-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8056640 | Hydraulic head clamp assembly for mobile drill rig | Melvin P. Kejr | 2011-11-15 |