US PATENT SUBCLASS 135 / 83
.~.~.~ Fluid

Current as of: June, 1999
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135 /   HD   TENT, CANOPY, UMBRELLA, OR CANE

65  DF  CANES, STICKS, CRUTCHES, AND WALKING AIDS {7}
77  DF  .~ Tips {5}
82  DF  .~.~ Shock absorbing {1}
83.~.~.~ Fluid

DEFINITION

Classification: 135/83

(under subclass 82) Structure wherein the shock absorber includes fluid means.