(under subclass 200) Devices, wherein the closure extends into and is encircled by the receptacle mouth and engages the interior walls of the receptacle.
(1) Note. See the appropriate class for stoppers peculiar to a classified art.
SEE OR SEARCH CLASS
4, Baths, Closets, Sinks, and Spittoons,
295, for plugs for sink strainers.
220, Receptacles,
801+, for slip type closures for metallic receptacles. 222, Dispensing,