(under the class definition) Device comprising a plurality of closures, each having a means to effect, prevent or permit movement of its closure, and a separate common means to effect, permit or prevent movement of all of the closures.
SEE OR SEARCH THIS CLASS, SUBCLASS:
16, for jail type closures having individual controls and a remote master control.
SEE OR SEARCH CLASS
105, Railway Rolling Stock,
341, for a railway passenger car having entrance and exit closures, controlled individually, and jointly through a master control.