US PATENT SUBCLASS 172 / 455
.~.~ Tandem gangs

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

452  DF  WITH ACTUATOR ADAPTED TO LIFT TOOL FOR TRANSPORT ON WHEELED FRAME OR BROADLY CLAIMED IMPLEMENT {37}
454  DF  .~ Angled gangs lifted as a unit {1}
455.~.~ Tandem gangs

DEFINITION

Classification: 172/455

(under subclass 454) Apparatus in which one group of elements is positioned behind another.

SEE OR SEARCH THIS CLASS, SUBCLASS:

441, for tandem-angled gangs carried by a mast-type hitch which are lifted as a unit.