US PATENT SUBCLASS 172 / 712
.~ Tool assumes different position for opposite draft


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

681  DF  TOOL, STANDARD OR CONNECTION {32}
712.~ Tool assumes different position for opposite draft


DEFINITION

Classification: 172/712

(under subclass 681) Apparatus in which the earth working element pivots to a different working position relative to the ground when the element is moved in opposite directions.

SEE OR SEARCH THIS CLASS, SUBCLASS:

26.6, for a dragline scraper which has a part which is rearranged on reverse movement.

618, for plural relatively movable implements which assume different working positions when moved in opposite directions.

777+, for a tool suspending from a scraper, the tool assuming a different position for opposite draft.