US2324230A
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Process of preparing wood pulp
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US2269985A
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Manufacture of wood pulp
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US2176850A
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Preparation of cellulose derivatives
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US2300733A
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Cellulose pulping system
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US2191525A
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Preparation of cellulose derivatives
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US2230119A
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Process of producing wood cellulose
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US2259746A
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Cellulose derivative film and coating
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US2228349A
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Treatment of woody material
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US2190274A
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Method of bleaching cellulose
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US2180517A
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Making cellulose derivatives
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US2198065A
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Process for purifying wood pulp
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US2198706A
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Refining wood pulp
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US2187710A
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Wood cellulose and method of producing same
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US2185776A
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Method of treating wood cellulose
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GB478943A
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System of obtaining and treating cellulose and product thereof
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GB478944A
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System of obtaining and treating cellulose and product thereof
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US2137779A
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Process of impregnating wood chips
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US2169473A
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Method of producing cellulose pulp
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US2087263A
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Cellulose pulping system and product thereof
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US2061205A
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Pulping process
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