US PATENT SUBCLASS 180 / 10
.~.~ Annular


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}
10.~.~ Annular


DEFINITION

Classification: 180/10

(under subclass 9) Motor-vehicles having a ring or annular track on which a supporting-wheel or supporting-wheels of the vehicle bear and which is caused to rotate to effect propulsion.

SEE OR SEARCH THIS CLASS, SUBCLASS:

342+, for transmission mechanism which includes a rotatably driven pulley or the equivalent for driving a tire or a wheel rim by direct engagement therewith.

SEE OR SEARCH CLASS

280, Land Vehicles,

207, for vehicles propelled by occupant within the wheel.

295, Railway Wheels and Axles, 3, for railway wheels of this type.

305, Wheel Substitutes for Land Vehicles,

7, for a rigid circular track type wheel substitute.