Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4480510 | Powered ratchet wrench | Dave D. Nagel, Ron Graham | 1984-11-06 |
| 4432256 | Adjustable powered wrench | Ron Graham | 1984-02-21 |
| 4410054 | Well drilling tool with diamond radial/thrust bearings | Dave D. Nagel | 1983-10-18 |