US PATENT SUBCLASS 172 / 51
.~.~.~ All rotary

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

35  DF  WITH DRIVE MEANS FOR TOOL OR CLEANER {37}
48  DF  .~ Plural driven tools {6}
50  DF  .~.~ Diverse tools {3}
51.~.~.~ All rotary {1}
52  DF  .~.~.~.~> Parallel axes

DEFINITION

Classification: 172/51

(under subclass 50) Apparatus in which each of the diverse driven earth working elements moves through at least a complete turn in a circular path about an axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

69, for similar arrangements wherein a rotary tool is driven by a diverse rolling tool.