US PATENT SUBCLASS 172 / 193
.~ First tool with spaced trailing sweep


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

133  DF  DIVERSE TOOLS {29}
193.~ First tool with spaced trailing sweep {1}
194  DF  .~.~> Sweep adjustable


DEFINITION

Classification: 172/193

(under subclass 133) Apparatus comprising an earth working element (e.g., shovel or moldboard) for moving soil transverse to the line of travel and mounted upon a standard and an earth working blade or sweep following the earth working element and operating upon the moved soil and mounted on the standard behind the earth working element or on a rearwardly extending member connected to the earth working element or standard.

SEE OR SEARCH THIS CLASS, SUBCLASS:

722, for symmetrical tools having separately attached wings or moldboards.

728, for symmetrical tools having an attached rearwardly extending runner on depth gauge and additional blades attached directly to the runner.