US PATENT SUBCLASS 172 / 461
.~ Tool lifted with respect to stationary or relatively movable cleaner

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}
461.~ Tool lifted with respect to stationary or relatively movable cleaner

DEFINITION

Classification: 172/461

(under subclass 452) Apparatus having a means for removing debris from the earth working element when it is raised, said means being (1) fixed on the frame and the earth working element raised relative thereto or (2) positively moved relative to the earth working element by the raising motion of the earth working element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

606+, for earth working tools having cleaners.