US PATENT SUBCLASS 172 / 672
.~.~ Wheel secured to tool

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

669  DF  WITH WHEEL; OR SUPPORTED ON WHEEL FRAME OR BROADLY CLAIMED IMPLEMENT {6}
671  DF  .~ Mounted on single longitudinal beam in tool path {1}
672.~.~ Wheel secured to tool

DEFINITION

Classification: 172/672

(under subclass 671) Apparatus wherein the wheel or wheels are secured directly to an earth-engaging portion of the earth working element.