US PATENT SUBCLASS 172 / 644
.~ Tools longitudinally adjustable to and from transverse alignment


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

613  DF  PLURAL RELATIVELY MOVABLE TOOLS {14}
644.~ Tools longitudinally adjustable to and from transverse alignment


DEFINITION

Classification: 172/644

(under subclass 613) Apparatus in which a plurality of earth working elements is mounted on a frame for relative movement toward and away from each other in the direction of draft whereby in a single manipulation such elements may be moved from a fore-and-aft spaced position to a position in which all of said elements are in transverse alignment.