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2179920
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Patent number 2,179,920
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Issue date Nov 14, 1939
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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2128514
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Patent number 2,128,514
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Issue date Aug 30, 1938
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...