US PATENT SUBCLASS 280 / 412
.~.~.~ Adjustable position

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

29  DF  WHEELED {21}
400  DF  .~ Articulated vehicle {30}
411.1  DF  .~.~ Multiple trailing vehicles {1}
412.~.~.~ Adjustable position {1}
413  DF  .~.~.~.~> Abreast

DEFINITION

Classification: 280/412

(under subclass 411.1) Devices in which the relative position of at least one of the vehicles with respect to the others

may be selectively changed.