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C07 - ORGANIC CHEMISTRY
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Patent number 2,315,195
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Patent number 2,063,161
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Patent number 1,990,010
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1983888
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Patent number 1,983,888
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1925217
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Patent number 1,925,217
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1907281
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Patent number 1,907,281
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1857264
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Patent number 1,857,264
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1857250
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Patent number 1,857,250
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1851070
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Patent number 1,851,070
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1850758
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Patent number 1,850,758
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1830861
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Patent number 1,830,861
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1816550
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Patent number 1,816,550
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1801713
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Patent number 1,801,713
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1792648
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Patent number 1,792,648
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1778076
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1760797
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Patent number 1,760,797
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C07 - ORGANIC CHEMISTRY
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1691660
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1655692
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1655697
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Patent number 1,655,697
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1650139
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1631865
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1613275
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1590685
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1558252
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1537928
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Patent number 1,537,928
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...