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Hans Schlapfer-Illi deceased

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  • LATE OF Basel, CH
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Patents Grantslast 30 patents

  • Information Patent Grant

    4-(V-triazolyl)-styryl optical brighteners
    • Patent number 4,138,552
    • Issue date Feb 6, 1979
    • Ciba-Geigy Corporation
    • Hans Schlapfer-Illi
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...