Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7896366 | Lever-actuated retractable wheel and movable platform using same | Geoffrey George Campbell | 2011-03-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7896366 | Lever-actuated retractable wheel and movable platform using same | Geoffrey George Campbell | 2011-03-01 |