(under subclass 223) Devices comprising a corrugated tube section of flexible material for joining two conduit ends which permits unrestricted motion of the conduits.
SEE OR SEARCH THIS CLASS, SUBCLASS:
57, for a flexible bellows in a floor supported, water-closet type joint.
299+, for expansion joints limited to reciprocating motion, which include bellows.
SEE OR SEARCH CLASS
92, Expansible Chamber Devices,
34+, for a bellows type expansible chamber device.
