US PATENT SUBCLASS 172 / 585
.~.~.~ Groups of unequal length

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

518  DF  ROLLING, ROTATING OR ORBITALLY MOVING TOOL {30}
579  DF  .~ Plural groups of disks {5}
584  DF  .~.~ Horizontally angularly adjustable group {9}
585.~.~.~ Groups of unequal length

DEFINITION

Classification: 172/585

(under subclass 584) Apparatus in which one group is of a different length than another group.