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Ralf Twellman

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  • Obernkirchen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Multifunctional foot switch
    • Patent number 8,143,540
    • Issue date Mar 27, 2012
    • Steute Schaltgeraete GmbH & Co. KG
    • Ralf Twellman
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    MULTIFUNCTIONAL FOOT SWITCH
    • Publication number 20100089728
    • Publication date Apr 15, 2010
    • STEUTE SCHALTGERAETE GMBH & CO. KG
    • Ralf Twellman
    • H01 - BASIC ELECTRIC ELEMENTS