(under subclass 439) Apparatus in which said earth working device comprises a plurality of rows of earth working elements, the axis of one row in plan view being located at, or being adjustable to, an angle with respect to the axis of another row, and the rows being vertically movable with the mast structure as a unit.
(1) Note. The earth working elements are usually disks.
SEE OR SEARCH THIS CLASS, SUBCLASS:
454+, for angled gangs liftable for transport on a wheeled frame by an actuating means other than a mast-type hitch.
