US PATENT SUBCLASS 172 / 422
.~ Crank axle with angularly spaced wheel carrying arms

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

395  DF  WITH GROUND SUPPORT VERTICALLY ADJUSTABLE RELATIVE TO FRAME {10}
422.~ Crank axle with angularly spaced wheel carrying arms

DEFINITION

Classification: 172/422

(under subclass 395) Apparatus in which a plurality of wheels are carried by arms which extend radially from and are connected to a common shaft and are circumferentially spaced about the axis of said shaft.