Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5005682 | Air powered torque control tool driver with automatic torque disconnect | James A. Sjovall | 1991-04-09 |
| 4471972 | Propulsion and safety device for a conventional wheelchair | — | 1984-09-18 |