US PATENT SUBCLASS 180 / 9.34
.~.~.~ With ground wheel

Current as of: June, 1999
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180 /   HD   MOTOR VEHICLES

7.1  DF  SPECIAL DRIVING DEVICE {6}
9  DF  .~ Portable track {2}
9.1  DF  .~.~ Endless, flexible {12}
9.34.~.~.~ With ground wheel {2}
9.36  DF  .~.~.~.~> Opposite and laterally spaced
9.38  DF  .~.~.~.~> Steering

DEFINITION

Classification: 180/9.34

(under subclass 9.1) Motor vehicles provided with a ground engaging wheel adapted to assist the endless track in supporting or propelling the vehicle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9.32, for a flexible track motor vehicle provided with wheels which are normally out of ground contact, but which are engageable with the ground when the vehicle encounters an obstruction.