Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699868 | Rotary drill bits having nozzles to enhance recirculation | Graham Watson, T. Alex Newton | 1997-12-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699868 | Rotary drill bits having nozzles to enhance recirculation | Graham Watson, T. Alex Newton | 1997-12-23 |