Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8024895 | Device for raising and lowering a lighting mast | Geoffrey Hall | 2011-09-27 |
| 5899651 | Column counterbalancing apparatus | — | 1999-05-04 |
| 5634759 | Raising and lowering columns | — | 1997-06-03 |
| 5058336 | Hinged flange pole | — | 1991-10-22 |