Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653301 | Wheel-supported apparatus for climbing and descending stairs | — | 1997-08-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653301 | Wheel-supported apparatus for climbing and descending stairs | — | 1997-08-05 |