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Ralf-Burkhard Dethlefs

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  • Osnabruch, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polyolefin-coated photographic support material
    • Patent number 5,395,689
    • Issue date Mar 7, 1995
    • Felix Schoeller jr Foto- und Spezialpapiere GmbH & Co. KG
    • Ralf-Burkhard Dethlefs
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE