| Number | Name | Date | Kind |
|---|---|---|---|
| D141736 | French | Jul 1945 | |
| 3411600 | Loving et al. | Nov 1968 | |
| 3711146 | Madzsar et al. | Jan 1973 | |
| 4036519 | Servais et al. | Jul 1977 |
| Entry |
|---|
| Design News, 9/10/79, p. 10, tractor trailer, top right side of page. |
| Business Week, 6/19/43, p. 97, tractor trailer, top of page. |
| Commercial Car Journal, 11/81, p. 32, tractor trailer, top right side of page. |