US PATENT SUBCLASS 280 / 437
.~.~.~.~.~ Transverse horizontal pivot retainer

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}
434  DF  .~.~.~.~ Self-coupling {2}
437.~.~.~.~.~ Transverse horizontal pivot retainer

DEFINITION

Classification: 280/437

(under subclass 434) Devices in which one of the vehicles is provided with a member which pivots about a horizontal axis which is transverse to the line of draft and coacts with a complementary coupling part on the other vehicle to effect connection of the vehicles.