US PATENT SUBCLASS 37 / 372
.~.~ With plow supported wheel or supported on wheel frame

Current as of: June, 1999
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37 /   HD   EXCAVATING

347  DF  DITCHER {8}
366  DF  .~ Plow {5}
372.~.~ With plow supported wheel or supported on wheel frame

DEFINITION

Classification: 37/372

With plow supported wheel or supported on wheel frame:

(under subclass 366) Apparatus wherein the plow is combined with a solid circular disk or a rigid circular ring connected by spokes to a hub, designed to turn around an axle passed through the center mounted on a trencher frame to carry the device.