US PATENT SUBCLASS 172 / 339
.~.~.~.~ With balancing means

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}
338  DF  .~.~.~ Tongueless, animal draft {1}
339.~.~.~.~ With balancing means

DEFINITION

Classification: 172/339

(under subclass 338) Apparatus provided with a member to contact the ground and stabilize the apparatus when the earth working elements are placed in an inoperative position.