TREA

Ronald Appel

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  • Den Haag, NL
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Patents Grantslast 30 patents

  • Information Patent Grant

    Microphone with internal damping
    • Patent number 7,415,121
    • Issue date Aug 19, 2008
    • Sonion Nederland B.V.
    • Raymond Mögelin
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Microphone with internal damping
    • Publication number 20060093167
    • Publication date May 4, 2006
    • Raymond Mogelin
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE