Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4235298 | Truck or truck tractor windshield air ram arrangement | Thomas R. Liethen | 1980-11-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4235298 | Truck or truck tractor windshield air ram arrangement | Thomas R. Liethen | 1980-11-25 |