US PATENT SUBCLASS 280 / 478.1
.~.~.~ Draft element bodily shiftable

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

29  DF  WHEELED {21}
400  DF  .~ Articulated vehicle {30}
477  DF  .~.~ Connection facilitating {1}
478.1.~.~.~ Draft element bodily shiftable {3}
479.1  DF  .~.~.~.~> With motor
479.2  DF  .~.~.~.~> Telescoping drawbar swingable on horizontal guide
479.3  DF  .~.~.~.~> Extensible swingable tow bar with coacting guide for centering

DEFINITION

Classification: 280/478.1

Draft element bodily shiftable:

(under subclass 477) Vehicles in which the draft or coupling member on one of the vehicles is releasable from its normal position on the vehicle to permit connection with the cooperating element on the other vehicle and is then returned to the normal position.

(1) Note. The normal position of a draft or coupling member

on a vehicle is defined as that position or range of positions that the part assumes or may assume when the vehicle is in running, articulated relationship with another vehicle.