Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826195 | Auxiliary towing apparatus for tractor trucks and the like | William C. Boyles, C. V. Johnston | 1989-05-02 |
| 4699558 | Mobile cargo loader for lifting and transporting building modules and the like | Clifford V. Johnston | 1987-10-13 |
| 4640528 | Torsion-absorbing highway semitrailer | William C. Boyles, Clifford V. Johnston | 1987-02-03 |