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2-Ketosulfonamides
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Patent number 4,448,988
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Issue date May 15, 1984
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Hoechst Aktiengesellschaft
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Dieter Gunther
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C07 - ORGANIC CHEMISTRY
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Mixtures of optical brighteners
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Patent number 4,231,741
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Issue date Nov 4, 1980
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Hoechst Aktiengesellschaft
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Dieter Gunther
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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Mixtures of optical brighteners
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Patent number 4,169,810
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Issue date Oct 2, 1979
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Hoechst Aktiengesellschaft
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Dieter Gunther
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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Brightener mixtures and their use
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Patent number 4,129,412
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Issue date Dec 12, 1978
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Hoechst Aktiengesellschaft
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Dieter Gunther
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...