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3852404
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C01 - INORGANIC CHEMISTRY
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3714337
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C01 - INORGANIC CHEMISTRY
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3672830
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C01 - INORGANIC CHEMISTRY
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3669896
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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3443888
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C01 - INORGANIC CHEMISTRY
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3337359
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C01 - INORGANIC CHEMISTRY
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3041234
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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2711968
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C01 - INORGANIC CHEMISTRY
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2687973
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C01 - INORGANIC CHEMISTRY
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2687972
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Patent number 2,687,972
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C01 - INORGANIC CHEMISTRY
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Patent number 2,687,974
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C01 - INORGANIC CHEMISTRY
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2605167
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C01 - INORGANIC CHEMISTRY
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2540182
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C01 - INORGANIC CHEMISTRY
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2500958
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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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C01 - INORGANIC CHEMISTRY
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C01 - INORGANIC CHEMISTRY
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2296636
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C01 - INORGANIC CHEMISTRY
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C01 - INORGANIC CHEMISTRY
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2296066
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C01 - INORGANIC CHEMISTRY