US PATENT SUBCLASS 280 / 656
.~.~ Trailer

Current as of: June, 1999
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280 /   HD   LAND VEHICLES

29  DF  WHEELED {21}
638  DF  .~ Extensible {6}
656.~.~ Trailer

DEFINITION

Classification: 280/656

(under subclass 638) Extensible vehicles structurally designed to by pulled or towed behind another wheeled vehicle on which the trailer is dependent for motion.