US PATENT SUBCLASS 172 / 685
.~ Plural tools

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

681  DF  TOOL, STANDARD OR CONNECTION {32}
685.~ Plural tools {6}
686  DF  .~.~> Right and left hand type
687  DF  .~.~> Longitudinally spaced rows {1}
689  DF  .~.~> Closed geometrically shaped frame
690  DF  .~.~> V-shaped frame
691  DF  .~.~> Mounted on transverse or oblique tool bar {2}
694  DF  .~.~> Laterally spaced tools {3}

DEFINITION

Classification: 172/685

(under subclass 681) Apparatus comprising a plurality of spaced earth working elements.

(1) Note. A device comprising earth working elements all attached to an earth working portion is considered a unitary earth working means and does not come under this definition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

133+, for a plurality of tools of different types.

310+, for plural wheeled implements.

378+, for hand tools having plural prongs or teeth.

518+, for plural rolling tools and especially subclasses 574+ for plural disks with individual mounts. 613+, for plural relatively movable tools.

786+, for plural scrapers, at least one of which is between the front and rear ground supports of a vehicle.

SEE OR SEARCH CLASS

171, Unearthing Plants or Buried Objects,

84+, for diggers comprising a plurality of spaced digging elements.