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Karl-Heinz Drexhage

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  • Siegen, DE
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  • Information Patent Grant

    Amidopyrylium fluorescence dyes
    • Patent number 6,737,280
    • Issue date May 18, 2004
    • Karl-Heinz Drexhage
    • Karl-Heinz Drexhage
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

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