US PATENT SUBCLASS 172 / 629
.~.~ Three or more laterally spaced groups


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

613  DF  PLURAL RELATIVELY MOVABLE TOOLS {14}
619  DF  .~ Plural tool groups relatively vertically movable because of operation {9}
629.~.~ Three or more laterally spaced groups


DEFINITION

Classification: 172/629

(under subclass 619) Apparatus in which there are at least

three earth working element groups so disposed laterally one of the other that during operation each group traverses a longitudinal path which is transversely spaced from the path of the other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

623, for groups of tools abreast and in tandem which may have three or more laterally spaced groups.

624+, for two or more groups of tools connected to a forward transverse draft bar.