(under subclass 663) Apparatus comprising an actuator for positioning an implement about an axis which is substantially horizontal and extends in the direction of travel.
(1) Note. For meaning of "actuator" see class definition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
225, for actuating means for rotating right and left hand implements about a longitudinal axis.
459+, for implements liftable for transport on a wheeled frame and being pivoted about a longitudinal axis.
673, for laterally adjustable tools mounted on a wheeled frame.