US PATENT SUBCLASS 37 / 439
.~.~.~ With caster wheel or shoe

Current as of: June, 1999
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37 /   HD   EXCAVATING

411  DF  SCOOP OR EXCAVATING AND TRANSPORTING CONTAINER {7}
435  DF  .~ Mounted rearwardly of vehicle {3}
436  DF  .~.~ Bowl operatively connected to wheel axle {3}
439.~.~.~ With caster wheel or shoe

DEFINITION

Classification: 37/439

With caster wheel or shoe:

(under subclass 436) Apparatus wherein the bowl is additionally supported on a pilot wheel or sliding contact plate.