US PATENT SUBCLASS 172 / 178
.~.~.~ Including disk gang

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}
178.~.~.~ Including disk gang

DEFINITION

Classification: 172/178

(under subclass 175) Apparatus in which the rolling implement comprises a group of earth working elements of generally circular platelike members each having the same axis of rotation.

(1) Note. The disks may be planar or concavo-convex.

SEE OR SEARCH THIS CLASS, SUBCLASS:

518+, for disk gangs, per se.