.~ Tools relatively adjustable horizontally without causing vertical displacement {7}
647
.~.~ Tools simultaneously adjustable about their individual, spaced vertical axes
DEFINITION
Classification: 172/647
(under subclass 645) Apparatus comprising a plurality of earth working elements each being adjustable about spaced vertical axes which coincide with the vertical axes of the earth working elements or element standards, said elements being interconnected so as to partake of concurrent movement about said axes when adjusted.
(1) Note. For the meaning of "adjustable" see the class definition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
221, for alternating right or left hand tools which are simultaneously shifted about individual vertical axes.
576, for disk earth working elements which are simultaneously shifted about individual axes.
614+, for tools which are simultaneously adjusted about their individual vertical axes as the axes are moved laterally.
