Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5354167 | Single-powered underlift towing apparatus | John M. Cullum | 1994-10-11 |
| 5284415 | Single-powered underlift towing apparatus | John M. Cullum | 1994-02-08 |
| 4240661 | Yoke | — | 1980-12-23 |