Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6672516 | Thick web miter rail joint system between stationary and vertically movable track sections | — | 2004-01-06 |
| 6386492 | Temporary sign holder | David M. Brown, D. Bernard Heffernan | 2002-05-14 |