US PATENT SUBCLASS 280 / 82
.~.~ Tongue truck

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

29  DF  WHEELED {21}
80.1  DF  .~ Running gear {20}
82.~.~ Tongue truck {3}
83  DF  .~.~.~> Vertically adjustable
84  DF  .~.~.~> One-wheel
85  DF  .~.~.~> Swinging axle and rocking

DEFINITION

Classification: 280/82

(under subclass 80.1) Devices specially adapted to support and guide the tongue of a vehicle.

(1) Note. These trucks are usually used for the tongue of such agricultural machinery as harvesters to eliminate "side draft."