(under subclass 638) Subject matter, wherein the attachable device is a fluid storage means.
(1) Note. This subclass includes structure defining a fluid recess that may depend upon the position of the vessel. That is, the attachment may form a lip with the top of the vessel so that when the vessel is placed on a side, a fluid recess is formed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
587, for fluid-treating of superimposed or laminar sheets having a fluid reservoir.
, FOR 954, for a foreign art collection involving a fluid-treating apparatus film or print processing vessel including an attachment or accessory reservoir.