U.S. federal trademark · Serial No. 75548334 · Reg. No. 2318340
VISUAL CALL PLACEMENT AND STATUS COMMUNICATION SYSTEM COMPRISED OF - (1) CENTRALLY LOCATED VISUAL PANEL; (2) INDIVIDUAL CALL AND STATUS UNITS; (3) INDIVIDUAL EMERGENCY CALL DEVICES; AND (4) INDIVIDUAL CORRIDOR DOME LIGHTS, FOR THE PURPOSE OF IDENTIFYING CALL PLACEMENT AND STATUS OF USER
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