Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806065 | Trailer | Joseph C. Holt | 1989-02-21 |
| 4635997 | Trailer | Joseph C. Holt | 1987-01-13 |
| 4580830 | Trailer | Joseph C. Holt | 1986-04-08 |
| 4413836 | Tractor-trailer coupling means | — | 1983-11-08 |
| 4400005 | Tractor-trailer connector means with retractable coupling pins | — | 1983-08-23 |