Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5310293 | Drill bit with cutting insert | David James | 1994-05-10 |
| 5195404 | Drill bit with cutting insert | David James | 1993-03-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5310293 | Drill bit with cutting insert | David James | 1994-05-10 |
| 5195404 | Drill bit with cutting insert | David James | 1993-03-23 |