US PATENT SUBCLASS 172 / 734
.~ Adjustable

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

681  DF  TOOL, STANDARD OR CONNECTION {32}
734.~ Adjustable {5}
735  DF  .~.~> To present different working portion
736  DF  .~.~> Relatively adjustable earth engaging parts {2}
739  DF  .~.~> Adjustable about horizontal transverse axis {1}
741  DF  .~.~> Laterally adjustable {2}
744  DF  .~.~> Vertically adjustable

DEFINITION

Classification: 172/734

(under subclass 681) Apparatus in which an earth working element or part thereof is selectively held in different positions with respect to the frame or standard.

(1) Note. See the class definition for the definition of "adjustable".

SEE OR SEARCH THIS CLASS, SUBCLASS:

372, for hand-held tools having adjustable parts.

383+, for angularly adjustable wheels.

395+, for wheels vertically adjustable relative to a frame.

518+, for adjustable rolling implements. 605, for an implement adjustment utilizing the draft force on a shiftable hitch.

613, for plural relatively adjustable tools.

669+, for tools adjustable on a wheeled frame.

679+, for adjustable draft members.

SEE OR SEARCH CLASS

175, Boring or Penetrating the Earth,

382+, and the search there noted for an earth boring bit having an adjustable cutter element.