US PATENT SUBCLASS 172 / 161
.~ Including implement alternating for right or left hand operation

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

133  DF  DIVERSE TOOLS {29}
161.~ Including implement alternating for right or left hand operation {1}
162  DF  .~.~> Reversal of implement adjusts diverse tool

DEFINITION

Classification: 172/161

(under subclass 133) Apparatus in which one of the earth working elements comprises earth working means (other than a scraper) adapted to be adjusted so as to shift the earth in alternate lateral directions with respect to the direction of draft at different times.

SEE OR SEARCH THIS CLASS, SUBCLASS:

204+, for tools alternating for right or left hand operation.