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Color former mixture
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Patent number 6,143,904
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Issue date Nov 7, 2000
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Ciba Specialty Chemicals Corporation
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Rudolf Zink
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C07 - ORGANIC CHEMISTRY
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Color former mixture
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Patent number 5,681,791
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Issue date Oct 28, 1997
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Ciba-Geigy Corporation
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Rudolf Zink
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C07 - ORGANIC CHEMISTRY
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Bleaching auxiliary
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Patent number 5,670,082
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Issue date Sep 23, 1997
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Ciba-Geigy Corporation
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Albert Stehlin
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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Bleaching auxiliary
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Patent number 5,646,271
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Issue date Jul 8, 1997
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Ciba-Geigy Corporation
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Albert Stehlin
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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