Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838744 | Intermodal system for transporting a semi-trailer on two railway vehicles | Roger D. Sims, James T. Stevenson | 1989-06-13 |
| 4653966 | Drop-deck intermodal bogie | Samuel Levinson | 1987-03-31 |