US PATENT SUBCLASS 180 / 223
.~.~.~ Including steerable and driven wheel


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

21  DF  SPECIAL WHEEL BASE {6}
218  DF  .~ Having only two wheels {1}
219  DF  .~.~ Arranged in tandem {10}
223.~.~.~ Including steerable and driven wheel {1}
224  DF  .~.~.~.~> Both wheels motor driven


DEFINITION

Classification: 180/223

Including steerable and driven wheel:

(under subclass 219) Vehicle provided with at least one wheel which is not only drivingly rotated for propelling the vehicle, but is also attached to the vehicle in such a manner

that it may be moved pivotably (e.g., rotatably) about a more or less vertical axis for changing the course of travel of the vehicle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

13, 24, 37+, 211+, and 400+, as explained in the references thereto appearing in subclass 222 above, and see that subclass (222) for another motor vehicle of the two-tandem-wheeled type wherein one of the wheels is driven frictionally and further wherein means is provided for steering that wheel.