US PATENT SUBCLASS 135 / 70
.~.~ Remote control ground exchangeable tips

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}
68  DF  .~ Crutches {5}
70.~.~ Remote control ground exchangeable tips

DEFINITION

Classification: 135/70

(under subclass 68) Crutches having more than one ground engaging tip and operator means located at a point remote

from the tip end, usually at or near the handhold, by which the desired tip may be brought into ground engaging position.