US PATENT SUBCLASS 172 / 176
.~.~.~ Furrowing or ridging implement followed by furrow or ridge roller

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

133  DF  DIVERSE TOOLS {29}
174  DF  .~ Rolling and non-rolling {2}
175  DF  .~.~ Following same path {5}
176.~.~.~ Furrowing or ridging implement followed by furrow or ridge roller

DEFINITION

Classification: 172/176

(under subclass 175) Apparatus in which the non-rolling implement opens a furrow in or forms a ridge on the ground and the rolling implement operates in the furrow or on the ridge and conforms to the shape thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

143, for diverse tools wherein one of the tools is of the intermittent rolling or rotating type.