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Johann Zwick

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  • Ennepetal, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Butterfly valve
    • Patent number 6,595,488
    • Issue date Jul 22, 2003
    • Zwick GmbH
    • Johann Zwick
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Butterfly valve
    • Publication number 20100276621
    • Publication date Nov 4, 2010
    • Johann Zwick
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Butterfly vale
    • Publication number 20020134960
    • Publication date Sep 26, 2002
    • Johann Zwick
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...