US PATENT SUBCLASS 172 / 561
.~.~ Cleaners for opposite sides of 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}
561.~.~ Cleaners for opposite sides of disk

DEFINITION

Classification: 172/561

(under subclass 558) Apparatus in which the earth-removing means remove earth from the opposite sides of a said platelike member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

560, for converging discs having cleaners for opposite sides of each disk.