Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5166481 | Timing mechanism with improved electrical contacts | Ross G. Helft, Daniel K. Amonett | 1992-11-24 |
| 4988294 | Detachable abrasive disk | D. Robert DuBe | 1991-01-29 |
| 4601661 | Dental mandrel and detachable abrasive disk | D. Robert Du Be | 1986-07-22 |