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C01 - INORGANIC CHEMISTRY
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C07 - ORGANIC CHEMISTRY
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3307917
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Patent number 3,307,917
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C07 - ORGANIC CHEMISTRY
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2679544
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C07 - ORGANIC CHEMISTRY
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2620259
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Patent number 2,620,259
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C01 - INORGANIC CHEMISTRY
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2409429
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Patent number 2,409,429
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C01 - INORGANIC CHEMISTRY
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2387577
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C01 - INORGANIC CHEMISTRY
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2381344
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C01 - INORGANIC CHEMISTRY
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2184062
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C01 - INORGANIC CHEMISTRY
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2076953
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C01 - INORGANIC CHEMISTRY
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2043930
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C01 - INORGANIC CHEMISTRY
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2006981
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C01 - INORGANIC CHEMISTRY
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C01 - INORGANIC CHEMISTRY
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C01 - INORGANIC CHEMISTRY
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1235343
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Patent number 1,235,343
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C01 - INORGANIC CHEMISTRY
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1169817
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C01 - INORGANIC CHEMISTRY
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1050978
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C01 - INORGANIC CHEMISTRY
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C01 - INORGANIC CHEMISTRY
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C01 - INORGANIC CHEMISTRY