Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4579362 | Laterally yieldable hitch pole for trailing vehicles | — | 1986-04-01 |
| 4224783 | Side draft stabilizer | Dalton H. Spicer, Ken K. Oka | 1980-09-30 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4579362 | Laterally yieldable hitch pole for trailing vehicles | — | 1986-04-01 |
| 4224783 | Side draft stabilizer | Dalton H. Spicer, Ken K. Oka | 1980-09-30 |