US PATENT SUBCLASS 172 / 562
.~.~ Plural cleaners for single disk

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

518  DF  ROLLING, ROTATING OR ORBITALLY MOVING TOOL {30}
558  DF  .~ With disk cleaning means {6}
562.~.~ Plural cleaners for single disk

DEFINITION

Classification: 172/562

(under subclass 558) Apparatus in which more than one earth-removing means is mounted to cooperate with a single side of a said platelike member.