(under subclass 311) Device wherein the bottom comprises two or more separately movable parts, each provided with means which elastically yields under a load.
(1) Note. A seat bottom comprising two or more resiliently mounted independently movable support sections is in this subclass. See (2) Note to the definition of subclass 452.1.
SEE OR SEARCH THIS CLASS, SUBCLASS:
201, for a straddle seat comprising sectional or split relatively movable seating surfaces.