TREA

Ludwig Riedhammer GmbH

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Patents Grantslast 30 patents

  • Information Patent Grant

    Tunnel kiln
    • Patent number 4,884,969
    • Issue date Dec 5, 1989
    • Ludwig Riedhammer GmbH
    • Kolln Bernd
    • F27 - FURNACES KILNS OVENS RETORTS
  • Information Patent Grant

    Tunnel kiln
    • Patent number 4,609,345
    • Issue date Sep 2, 1986
    • Ludwig Riedhammer GmbH
    • Paul Schroder
    • F27 - FURNACES KILNS OVENS RETORTS

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