Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6845825 | Method and apparatus for attaching/detaching drill rod | Brian John Bischel, Mark Van Howelingen, Mark Robert Stelter, Peter C. Rozendaal | 2005-01-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6845825 | Method and apparatus for attaching/detaching drill rod | Brian John Bischel, Mark Van Howelingen, Mark Robert Stelter, Peter C. Rozendaal | 2005-01-25 |