(under subclass 204) Apparatus in which the earth working means comprises earth working elements which are alternately placed into operative position by rotation about an axis which is horizontal and longitudinal (i.e., in the direction of travel).
SEE OR SEARCH THIS CLASS, SUBCLASS:
34, for earth working apparatus in which the complete apparatus is adapted for use upside down.
232, for tools alternated for right or left hand operation by rotation about an axis lying in a vertical longitudinal plane and at an angle to the horizontal.