Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4657438 | Advancing mechanism and system utilizing same for raising and lowering a work platform | — | 1987-04-14 |
| 4655640 | Advancing mechanism and system utilizing same for raising and lowering a work platform | — | 1987-04-07 |
| 4497591 | Advancing mechanism and system utilizing same for raising and lowering a work platform | — | 1985-02-05 |