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Dumbwaiter Metal Shaftway Access Units, Each Consisting of a Metal Door, a Metal Entrance Sill, Metal Jambs, and Metal Trim; and Metal Doors for Dumbwaiter Machine Areas

Dumbwaiters Sold as a Unit, and Either With or Without a Transfer System for Automatically Moving Articles out of, or out of and into, the Dumbwaiter Car; Dumbwaiter Cars, Car Doors, Metal Guide Rails, Nonelectrical Metal Cables, Counterweights and Driving Machines

Manually Initiated Automatic Drive Controls for Dumbwaiters-Namely, Control Component Assemblies for Dumbwaiters that May or May Not Include a Transfer System for Automatically Moving Articles out of, or out of and into, a Dumbwaiter Car, Manual Control Switches and Faceplates for Manual Control Switches; Visual Signals in the Nature of Lamps; Audible Signals in the Nature of Buzzers; and Faceplates for Such Visual Signals; and Overtravel Switches