US PATENT SUBCLASS 172 / 586
.~.~.~ More than two laterally positioned groups

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}
586.~.~.~ More than two laterally positioned groups

DEFINITION

Classification: 172/586

(under subclass 584) Apparatus in which there are more than two of said groups in a lateral direction across the apparatus so that more than two paths are formed in the ground.

(1) Note. A rear group may overlap a front group to a very minor extent in a lateral sense and still be considered to form a separate path. Where, however, the overlap is of material length the groups are considered tandem and classifiable in subclass 595 or 596.