US PATENT SUBCLASS 172 / 388
.~ With wheel

Current as of: June, 1999
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172 /   HD   EARTH WORKING

387  DF  WITH WHEEL SUBSTITUTE (E.G., RUNNER, ETC.) {6}
388.~ With wheel

DEFINITION

Classification: 172/388

(under subclass 387) Apparatus which includes a wheel which is adapted to support at least a portion of the weight of the device in at least one position of the wheel or implement.