Number | Name | Date | Kind |
---|---|---|---|
2779378 | Robertson | Jan 1957 | |
4305445 | Yoshioka et al. | Dec 1981 |
Entry |
---|
1988 Tread Design Guide, p. 197, Sumitomo ST77 & ST508 Tire, second row down from top center of page & second tire in from bottom right side of page. |
Tire Review, 4/88, p. 67, Pneumant Tires, lower right side of page. |