(under the class definition) Device comprising two or more closures moving about a fixed pivot and which close or vacate
a single opening.
(1) Note. Plural duplicate closures in plural openings have been classified in appropriate subclasses below on the basis of the single closure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61+, for back to back closures for a single opening.
73.1+, for closures interconnected for concurrent movement, particularly subclasses 74+ for louver closures, and subclasses 104+ for swinging closures.
171, for a single closure for plural openings. 366+, for bipartite, center opening, plural swinging closures.
381+, for plural closures for plural openings, and see (1) Note above.
SEE OR SEARCH CLASS
52, Static Structures (e.g., Buildings),
206+, for a wall having closures for plural openings in the wall.
