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AUDIO-VIDEO MULTI-PARTICIPANT CONFERENCE SYSTEMS USING PSTN AND INTERNET NETWORKS

13/674,233 | U.S. Patent Application

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Filed Nov. 12, 2012
Examiner NI, SUHAN
Class 370
Art Group 2656
Patent No. 9,094,525
Case Type Utility
Status Patented Case
Child 14/590,721 Abandoned
Last Updated: 2 months ago
Date # Transaction