TREA

Edward J. Sager

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  • Kimberton, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Multi-user telephone system
    • Patent number 7,474,746
    • Issue date Jan 6, 2009
    • Atris, Incorporated
    • Judah S. Berkowitz
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Multi-user telephone system
    • Publication number 20050226218
    • Publication date Oct 13, 2005
    • Judah S. Berkowitz
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE