Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644956 | Rotary drill bit with improved cutter and method of manufacturing same | Jay S. Bird, Michael S. Beaton | 1997-07-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644956 | Rotary drill bit with improved cutter and method of manufacturing same | Jay S. Bird, Michael S. Beaton | 1997-07-08 |