Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6719360 | Trailer body construction | — | 2004-04-13 |
| 5953749 | Abdominal support device | — | 1999-09-21 |
| 5782538 | Swing away dump blocks for end dump trailers | — | 1998-07-21 |
| 5509724 | Multiple axle quarter frame end dump trailer | John Perry, Steven F. Retzloff | 1996-04-23 |