Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867069 | Transportation system drive-shoe assembly and method | — | 1989-09-19 |
| 4864937 | Aerial tramway having haul rope in vertical plane and carrier unit with rope engaging support sheaves which disengage haul at towers | — | 1989-09-12 |
| 4860664 | Haul rope grip assembly for aerial tramway with elastic block jaw actuating means | — | 1989-08-29 |
| 4848241 | Aerial tramway system and method having parallel haul ropes | — | 1989-07-18 |