US PATENT SUBCLASS 172 / 624
.~.~ Plural groups movably connected to forward transverse draft bar

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}
624.~.~ Plural groups movably connected to forward transverse draft bar {4}
624.5  DF  .~.~.~> With parallelogram-type linkage
625  DF  .~.~.~> With alternate draft means (spaced 90 degrees)
626  DF  .~.~.~> Sectional draft bar
627  DF  .~.~.~> Groups also connected to one another

DEFINITION

Classification: 172/624

(under subclass 619) Apparatus in which the groups are movably connected to a laterally extending bar or draft beam located ahead of the groups.

SEE OR SEARCH THIS CLASS, SUBCLASS:

623, for groups of tools abreast and in tandem which may also be connected to a forward transverse draft bar.

SEE OR SEARCH CLASS

280, Land Vehicles,

411.1, for articulated vehicles of the type including a leading vehicle and a plurality of laterally spaced trailing vehicles.