(under subclass 741) Apparatus in which the earth working element is angularly adjustable with respect to the line of travel, about an axis that is substantially vertical.
(1) Note. For the meaning of "adjustable" see the class definition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
447, for an apparatus comprising a mast- type hitch and a tool adjustable about a vertical axis.
477, for an earth working element liftable on a wheeled frame by means other than a mast-type hitch and adjustable about a vertical axis.
600, for a disc gang which is vertically adjustable about a vertical axis. 603, for a horizontally, angularly adjustable disc.
