U.S. federal trademark · Serial No. 76359376 · Reg. No. 2820271
Hospital audio-visual communication system comprising patient room call placement units, nursing staff annunciation and calling units, common area annunciation units and central control equipment, which provides for signaling and two-way communication from patient to nursing personnel, nurse to patients, and from nursing stations to and from other nursing stations and other ancillary and service departments in the hospital; and parts therefor for such systems
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