Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851980 | Double drum level winding rope lift mechanism for luminaires on high lighting masts | Archie McWilliams, Clyde A. Foor | 1989-07-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851980 | Double drum level winding rope lift mechanism for luminaires on high lighting masts | Archie McWilliams, Clyde A. Foor | 1989-07-25 |