Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D283211 | Steerable detachable wheelchair prime mover | James A. Palmer | 1986-04-01 |
| 4503925 | Detachable steerable power unit for occupant-propelled wheelchairs | James A. Palmer | 1985-03-12 |