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Hermann Schadel

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  • Ergste, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Double seat valve with leak control
    • Patent number 4,304,251
    • Issue date Dec 8, 1981
    • Hermann Schadel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Double-seat valve
    • Patent number 4,254,792
    • Issue date Mar 10, 1981
    • Holstein & Kappert GmbH
    • Hermann Schadel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...