US PATENT SUBCLASS 301 / 50
.~.~.~.~.~ Individually

Current as of: June, 1999
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301 /   HD   LAND VEHICLES: WHEELS AND AXLES

5.1  DF  WHEEL {21}
41.1  DF  .~ Traction increasing {5}
43  DF  .~.~ Projecting cleat {2}
45  DF  .~.~.~ Movable {2}
46  DF  .~.~.~.~ Adjustable {3}
50.~.~.~.~.~ Individually

DEFINITION

Classification: 301/50

(under subclass 46) Wheel including a plurality of projecting cleats each of which is adjustable, with respect to the wheel body, independently of the other cleats.