US PATENT SUBCLASS 172 / 510
.~.~ Rotary

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

508  DF  WITH GUARD, SHIELD OR PLANT DIVERTER {3}
509  DF  .~ Fender for deflected earth {4}
510.~.~ Rotary

DEFINITION

Classification: 172/510

(under subclass 509) Apparatus in which said means has a rotating movement imparted thereto usually by rolling contact with the earth.

SEE OR SEARCH THIS CLASS, SUBCLASS:

534, for rolling devices provided with peripherally spaced plant saving means.