US PATENT SUBCLASS 198 / 304
.~ Dirigible vehicle

Current as of: June, 1999
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198 /   HD   CONVEYORS: POWER-DRIVEN

300  DF  CONVEYING APPARATUS ENTIRELY SUPPORTED BY MOBILE GROUND ENGAGING MEANS {11}
304.~ Dirigible vehicle {1}
305  DF  .~.~> Pulling winch on vehicle

DEFINITION

Classification: 198/304

(under subclass 300) Apparatus in which the carrier includes means for controlling its direction of travel.

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303, for a conveyor assembly carried by a dirigible train of vehicles.

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172, Earth Working,

799, 832 and 834, for steerable wheel on an earth working vehicle.

305, Wheel Substitute for Land Vehicles, 44, for steerable vehicle tracks or treads.