| 1985 Tread Design Guide, p. 16, Concorde Trac-Action Tire, third row down from top, right side of page. |
| 1986 Tread Design Guide, vol. 21, p. 43, Hercules Superior 761, third row from top, extreme left. |
| 1986 Tread Design Guide, vol. 21, p. 46, Kelly-Springfield Charger Radial, first row, second from right. |
| 1986 Tread Design Guide, vol. 21, p. 67, Samyang Steel Belted Radial 763, third row, center. |
| 1986 Tread Design Guide, vol. 21, p. 79, Vredestein Sprint H70, fourth row, extreme right. |
| 1986 Tread Design Guide, vol. 21, p. 123, Firestone Steeltex Radial RTH, fourth row, center. |
Patent Grant
D301857
