INCLUDING PLURAL, INDEPENDENTLY SUPPORTED KEY-BOARDS,PLATENS, OR TYPE-SET-ASSEMBLAGES:
(under the class definition) Subject matter wherein there is provided more than one key-board* mounted separate from each other, or there is provided more than one platen* mounted separate from each other, or there is provided more than one type-set-assemblage* mounted separate from each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
353, for a typewriter having an auxiliary carriage*.
