(under subclass 607) Subject matter in which the body supporting surface as a whole is further adapted to turn along an axis perpendicular to the long axis.
(1) Note. This subclass includes patents that disclose the positioning of a body supporting surface on a universal joint or ball and socket joint that permits the tilting of the body supporting portion along an infinite number of axes in addition to a horizontal and a transverse axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
610, for body supporting surfaces tiltable only along a transverse axis.
