TREA

Wilhelm Walter

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  • Kerpen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Friction vacuum pump with cooling arrangement
    • Patent number 6,019,581
    • Issue date Feb 1, 2000
    • Leybold Aktiengesellschaft
    • Friedrich von Schulz-Hausmann
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuumtight connection
    • Patent number 5,829,794
    • Issue date Nov 3, 1998
    • Leybold Aktiengesellschaft
    • Friedrich Schulz-Hausmann
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...