US PATENT SUBCLASS 172 / 150
.~.~.~ Smooth levelling roller

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

133  DF  DIVERSE TOOLS {29}
145  DF  .~ Three or more diverse implements following same path (A, B, C, or A, B, A,) {3}
149  DF  .~.~ Including rolling tool {2}
150.~.~.~ Smooth levelling roller

DEFINITION

Classification: 172/150

(under subclass 149) Apparatus in which the rolling earth working element comprises a smooth surface compaction roller of uniform diameter and free from protuberances or depressions.

SEE OR SEARCH THIS CLASS, SUBCLASS:

170+, for other diverse tools one of which is a smooth leveling roller.

SEE OR SEARCH CLASS

404, Road Structure, Process, or Apparatus,

122+, for compacting rollers, per se.