Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6640731 | Dual tungsten carbide boot | Don C. Rowlett, James W. Henry, Dave Wiebe | 2003-11-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6640731 | Dual tungsten carbide boot | Don C. Rowlett, James W. Henry, Dave Wiebe | 2003-11-04 |