US PATENT SUBCLASS 280 / 445
.~.~.~.~.~ With steering disabling means

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

29  DF  WHEELED {21}
400  DF  .~ Articulated vehicle {30}
442  DF  .~.~ Wheel steering by articulative movement {1}
443  DF  .~.~.~ Stub axle {1}
444  DF  .~.~.~.~ Drawbar pivoting {1}
445.~.~.~.~.~ With steering disabling means

DEFINITION

Classification: 280/445

(under subclass 444) Devices having means whereby the wheels may be disconnected from the drawbar so that pivoting of the drawbar does not turn the wheels or having means whereby the drawbar or a portion thereof may be held against pivoting to prevent turning of the wheels.