US PATENT SUBCLASS 172 / 154
.~.~ All rolling


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

133  DF  DIVERSE TOOLS {29}
152  DF  .~ At least four alternately diverse laterally spaced tools (A, B, A, B) {2}
154.~.~ All rolling


DEFINITION

Classification: 172/154

(under subclass 152) Apparatus in which the diverse earth working elements are all of the rolling type.

(1) Note. This definition includes two rolling tools having laterally spaced sets of teeth, tines, or the like with the sets of one tool operating in paths between the sets of the other tool.

(2) Note. This definition includes apparatus having relatively rotatable earth working elements of different shape or contour even if the members axially abut or one element carries the other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

65, for a plurality of laterally spaced interdigitating driven and nondriven tools.

158, for laterally spaced like rolling tools with an intermediate diverse rolling tool.