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Basic dyestuffs
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Patent number 4,710,569
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Issue date Dec 1, 1987
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Bayer Aktiengesellschaft
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Gunter Franke
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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3564006
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Patent number 3,564,006
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Issue date Feb 16, 1971
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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3519642
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Patent number 3,519,642
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Issue date Jul 7, 1970
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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3287348
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Patent number 3,287,348
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Issue date Nov 22, 1966
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...