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3801340
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Patent number 3,801,340
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Issue date Apr 2, 1974
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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3563940
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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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Issue date Aug 18, 1959
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C07 - ORGANIC CHEMISTRY
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