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Azo compounds
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Patent number 7,125,966
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Issue date Oct 24, 2006
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Clariant Finance (BVI) Limited
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Robert Egli
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Isothiazoleazo hydroxypyridone dyes
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Patent number 4,929,720
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Issue date May 29, 1990
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BASF Aktiengesellschaft
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Guenter Hansen
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Heterocyclic azo pigments
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Patent number 4,053,463
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Issue date Oct 11, 1977
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BASF Aktiengesellschaft
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Helmut Junge
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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3686162
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Patent number 3,686,162
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Issue date Aug 22, 1972
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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2857372
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Patent number 2,857,372
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Issue date Oct 21, 1958
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...