Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10641302 | Pole assembly with dovetail cam structure for accessory mounting | Charles R. Huffman, Gregory David Mercier | 2020-05-05 |
| 5598083 | Battery changing system for electrically powered vehicle | — | 1997-01-28 |
| 5312206 | High lift temporary roof support for mines | — | 1994-05-17 |
| 5156497 | Temporary roof support for mines | — | 1992-10-20 |