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3245334
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Issue date Apr 12, 1966
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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1915432
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Patent number 1,915,432
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Issue date Jun 27, 1933
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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1683254
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Patent number 1,683,254
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Issue date Sep 4, 1928
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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1595479
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Patent number 1,595,479
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Issue date Aug 10, 1926
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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1595476
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Patent number 1,595,476
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Issue date Aug 10, 1926
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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1595481
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Patent number 1,595,481
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Issue date Aug 10, 1926
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE