US PATENT SUBCLASS 172 / 337
.~.~.~ Combined implement lift and wheel adjustment

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

329  DF  GUIDED BY WALKING ATTENDANT; SUPPORTED, PROPELLED, OR HELD IN POSITION BY ATTENDANT {7}
332  DF  .~ Tool manipulated with respect to mounting frame {5}
333  DF  .~.~ Arched wheel frame (i.e., straddle row, etc.) {9}
337.~.~.~ Combined implement lift and wheel adjustment

DEFINITION

Classification: 172/337

(under subclass 333) Apparatus having means to raise the earth working elements with respect to the wheeled frame and connected means to concurrently change the position of the wheels with respect to the frame.

SEE OR SEARCH THIS CLASS, SUBCLASS:

398, for other earth working elements mounted on a wheeled frame and actuating means for lifting the element and also vertically moving a wheel with respect to the frame.