(under subclass 130) Apparatus including a device which turns over or mixes the soil and which derives its motion from forces transmitted thereto by means other than, or in addition to, frictional contact with the soil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
161, for material deposited into a tiller operating zone wherein the tiller forms furrows.
SEE OR SEARCH CLASS
172, Earth Working, appropriate subclasses for specific types of powered tillers.
