(under subclass 204) Apparatus employing separate earth working elements oriented for movement in the same direction which are alternately placed into operation by movement in substantially longitudinal vertical, parallel planes.
(1) Note. The tools may deviate slightly from the vertical planes during alternation so as, for example, to clear one another.
SEE OR SEARCH THIS CLASS, SUBCLASS:
472, for plural tools simultaneously raised by an actuator for transport on a wheeled frame and which are individually lowered.
481, for tools raised by an actuator for transport on a wheeled frame and held in one position by a latch means separate from the actuating means.
