TREA

Ewald Dorken GmbH & Co. KG

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  • Herdecke, DE
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  • Information Patent Grant

    Foundation-drainage panel
    • Patent number 4,574,541
    • Issue date Mar 11, 1986
    • Ewald Dorken GmbH & Co. KG
    • Heinz P. Raidt
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

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