US PATENT SUBCLASS 180 / 6.58
.~ Controlled from rotatably mounted superstructure

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

6.2  DF  STEERING BY DRIVING {9}
6.58.~ Controlled from rotatably mounted superstructure {1}
6.6  DF  .~.~> Steering responsive to rotary movement of superstructure

DEFINITION

Classification: 180/6.58

(under subclass 6.2) Vehicles in which means for controlling the steering by driving mechanism is located on a pivotally mounted platform or turntable type of superstructure.

(1) Note. These are for the most part vehicles having endless flexible tracks.