US PATENT SUBCLASS 180 / 12
.~ Driven steering wheel type

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

11  DF  MOTOR-CARRYING ATTACHMENTS {1}
12.~ Driven steering wheel type {1}
13  DF  .~.~> Single wheel

DEFINITION

Classification: 180/12

(under subclass 11) Frames wherein the wheels of the attachment are driven and steered.