Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5103701 | Diamond tool machining of materials which react with diamond | Delbert D. Stewart, Christopher J. Evans | 1992-04-14 |
| 4828052 | Ultrasonic drilling apparatus | Edward L. Duran | 1989-05-09 |