U.S. federal trademark · Serial No. 73628967 · Reg. No. 1446166
HOSPITAL COMMUNICATION AND INFORMATION TRANSMISSION SYSTEM COMPRISING A CENTRAL STATION, KEYBOARD AND VIDEO DISPLAY, AND TELEPHONE CONTROL CONSOLE INTERCONNECTED WITH REMOTE TELEPHONE STATION CONSOLES, PORTABLE STAFF LOCATOR TRANSMITTERS AND TRANSMITTER SENSORS, AND CORRIDOR DOME LIGHT SIGNALS
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