TREA

Walter Grau

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  • Mahlberg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ceramic-plate flow-control valve
    • Patent number 5,348,042
    • Issue date Sep 20, 1994
    • Friedrich Grohe Aktiengesellschaft
    • Friedrich Wagner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Flow-control and shutofff valve
    • Patent number 5,022,631
    • Issue date Jun 11, 1991
    • Friedrich Grohe Armaturenfabrik GmbH & Co.
    • Friedrich Wagner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Shut-off and control valve
    • Patent number 5,014,736
    • Issue date May 14, 1991
    • Friedrich Grohe Armaturenfabrik GmbH & Co.
    • Harald Korfgen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...