Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4671369 | Stair-climbing wheelchair with means for cushioning vertical movements thereof | Baxter R. Watkins | 1987-06-09 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4671369 | Stair-climbing wheelchair with means for cushioning vertical movements thereof | Baxter R. Watkins | 1987-06-09 |