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GEOFFREY CORFIELD

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Patents Grantslast 30 patents

  • Information Patent Grant

    Establishing telephone calls
    • Patent number 10,701,204
    • Issue date Jun 30, 2020
    • WONEFONE LLP
    • Geoffrey Corfield
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    ESTABLISHING TELEPHONE CALLS
    • Publication number 20150304494
    • Publication date Oct 22, 2015
    • GEOFFREY CORFIELD
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE