.~ Tools relatively adjustable horizontally without causing vertical displacement {7}
654
.~.~ Main central beam, tools laterally adjustable relative thereto
DEFINITION
Classification: 172/654
(under subclass 645) Apparatus in which the earth working elements are mounted on opposite sides of a central longitudinal beam for lateral adjustment with respect thereto.
(1) Note. The central beam must extend substantially between the earth working portion of the earth working elements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
649+, for tool groups which may be adjustable relative to a main central beam.
741+, for a single earth working element which is laterally adjustable.
