US PATENT SUBCLASS 172 / 718
.~.~.~ Roller

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

681  DF  TOOL, STANDARD OR CONNECTION {32}
714  DF  .~ Plural earth engaging parts relatively movable because of operation {2}
716  DF  .~.~ Movable moldboard for inverting furrow slice {2}
718.~.~.~ Roller

DEFINITION

Classification: 172/718

(under subclass 716) Apparatus in which the movable moldboard comprises a member rotatable about an axis lying in a plane substantially parallel to the plane of movement of the soil over the moldboard.