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Fluorescent pigments
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Patent number 4,299,959
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Issue date Nov 10, 1981
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Ciba-Geigy Corporation
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Nalin B. Desai
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C07 - ORGANIC CHEMISTRY
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Fluorescent pigments
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Patent number 4,153,618
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Issue date May 8, 1979
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Ciba-Geigy Corporation
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Nalin B. Desai
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C07 - ORGANIC CHEMISTRY
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Polycyclic compounds
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Patent number 4,084,053
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Issue date Apr 11, 1978
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Ciba-Geigy Corporation
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Nalin Binduprasad Desai
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C07 - ORGANIC CHEMISTRY
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Monoazo compounds
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Patent number 3,971,740
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Issue date Jul 27, 1976
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Ciba-Geigy AG
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Nalin Binduprasad Desai
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...