US PATENT SUBCLASS 172 / 596
.~.~.~ Tandem 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}
596.~.~.~ Tandem groups {1}
597  DF  .~.~.~.~> Toggle joint between groups


DEFINITION

Classification: 172/596

(under subclass 584) Apparatus comprising a front group and a rear group positioned substantially directly in back of the front group and working substantially the same soil path.

SEE OR SEARCH THIS CLASS, SUBCLASS:

48+, for power-driven earth working elements arranged in tandem formation.

589+, for horizontally, angularly adjustable tandem gangs having a turning connection offset from the draft connection.