75257552
Mar 14, 1997
May 7, 2002
Active Trademark
mircroprocessor-based communications system, communications management system, and emergency notification system, for use in industrial environments and featuring a control panel; telephone handsets; telephone receivers; telephone interfaces; radio interfaces; supervised input/output devices; software; amplifiers; alarms; microphones; loudspeakers; receivers; strobe lights; and printers
Electrical and Scientific Apparatus