(under subclass 600) Subject matter in which the body supporting portion, as a whole, is adapted to tilt along its longitudinal axis thereby rotating or turning the supported body.
(1) Note. The supported body may be tilted only slightly along the longitudinal axis or it may be rotated a full 360 along the longitudinal axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
942, for supports that have longitudinally divided top surfaces with pivotable section.