85339583
Jun 7, 2011
Nov 13, 2012
Computerized sound system, comprising computer software for use in communications for connecting computer network users and for use in paging systems, audio components, namely, audio amplifiers and audio mixers, visual display components, namely, visual display monitors, keyboard and microphone interfaces for use in paging, broadcasting, and displaying messages and other information throughout a facility, and user manuals sold as a unit therewith
Electrical and Scientific Apparatus