(under the class definition) Device comprising two closures which move apart in opposite directions from an edge to edge closed position to form an opening.
SEE OR SEARCH THIS CLASS, SUBCLASS:
116+, for similar device wherein the closures are interconnected to move in unison.
168, for plural closures which move together and independently.
371, for plural swinging closures for a single opening in which the closures move from a closed position in which a hinge edge of one abuts a free edge of another.