US PATENT SUBCLASS 180 / 6.48
.~ Independently operable drive motors

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

6.2  DF  STEERING BY DRIVING {9}
6.48.~ Independently operable drive motors {1}
6.5  DF  .~.~> Electrical

DEFINITION

Classification: 180/6.48

(under subclass 6.2) Vehicles in which different traction elements are driven by individually controlled motor units for varying motor power output to effect steering by driving.

SEE OR SEARCH THIS CLASS, SUBCLASS:

6.3, for independently operable fluid drive motors in steering by driving systems combined with manual steering mechanism.