US PATENT SUBCLASS 280 / 441
.~.~.~.~.~.~ Slidably mounted

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

29  DF  WHEELED {21}
400  DF  .~ Articulated vehicle {30}
423.1  DF  .~.~ Semitrailer {7}
433  DF  .~.~.~ Fifth wheel only {2}
438.1  DF  .~.~.~.~ Movably mounted {2}
439  DF  .~.~.~.~.~ Resilient {2}
441.~.~.~.~.~.~ Slidably mounted

DEFINITION

Classification: 280/441

(under subclass 439) Devices in which at least one of the fifth wheel or coupling elements is mounted so as to be movably longitudinally of the vehicle to which it is connected and such movement is resisted by springs.

SEE OR SEARCH THIS CLASS, SUBCLASS:

486+, for resilient connections between vehicles of other than the semitrailer type which resist relative movements between the vehicles in the line of draft.