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3844917
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C07 - ORGANIC CHEMISTRY
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3795599
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C07 - ORGANIC CHEMISTRY
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3723271
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C07 - ORGANIC CHEMISTRY
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C07 - ORGANIC CHEMISTRY
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3558457
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C07 - ORGANIC CHEMISTRY
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3558458
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Patent number 3,558,458
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C07 - ORGANIC CHEMISTRY
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C07 - ORGANIC CHEMISTRY
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3360449
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C07 - ORGANIC CHEMISTRY
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C07 - ORGANIC CHEMISTRY
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C07 - ORGANIC CHEMISTRY
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3228849
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Patent number 3,228,849
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C07 - ORGANIC CHEMISTRY
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C07 - ORGANIC CHEMISTRY
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Patent number 3,228,848
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C07 - ORGANIC CHEMISTRY
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C07 - ORGANIC CHEMISTRY
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C07 - ORGANIC CHEMISTRY
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2967897
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C07 - ORGANIC CHEMISTRY
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2959530
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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2959529
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C07 - ORGANIC CHEMISTRY
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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C07 - ORGANIC CHEMISTRY
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C07 - ORGANIC CHEMISTRY
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C07 - ORGANIC CHEMISTRY