US PATENT SUBCLASS 152 / 185
.~.~ External

Current as of: June, 1999
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152 /   HD   RESILIENT TIRES AND WHEELS

151  DF  TIRES, RESILIENT {14}
*  DD  .~ Armored {6}
185.~.~ External {4}
185.1  DF  .~.~.~> Track for single wheel
186  DF  .~.~.~> Bound to felly
187  DF  .~.~.~> Tire secured {2}
190  DF  .~.~.~> Sectional {1}

DEFINITION

Classification: 152/185

External devices protecting all or substantially all of the tread portion of the tire against wear or puncture, either integral with the tire or applied.

(1) Note. See also this class, subclass 53 and indented subclasses, for annular external armor which is rigid and

forms an outer rim.