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Hoerbiger Ventilwerke Aktiengesellschaf

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  • Information Patent Grant

    Ring valve
    • Patent number 4,924,906
    • Issue date May 15, 1990
    • Hoerbiger Ventilwerke Aktiengesellschaf
    • Hans Hrabal
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...