US PATENT SUBCLASS 172 / 555
.~.~ Integral disk

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

518  DF  ROLLING, ROTATING OR ORBITALLY MOVING TOOL {30}
540  DF  .~ Tool has circumferentially spaced teeth, tines, blades or the like {13}
555.~.~ Integral disk

DEFINITION

Classification: 172/555

(under subclass 540) Apparatus in which the teeth or other configurations are integral parts of a platelike member.