US PATENT SUBCLASS 152 / 421
.~.~.~.~ Cam

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

151  DF  TIRES, RESILIENT {14}
415  DF  .~ Inflating devices {5}
418  DF  .~.~ Wheel carried supply {1}
419  DF  .~.~.~ With positive pump operating means {3}
421.~.~.~.~ Cam {1}
422  DF  .~.~.~.~.~> Eccentric bearing

DEFINITION

Classification: 152/421

The pump operating means comprises a cam.