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2411397
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Patent number 2,411,397
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Issue date Nov 19, 1946
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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2411396
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Patent number 2,411,396
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Issue date Nov 19, 1946
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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2019490
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Patent number 2,019,490
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Issue date Nov 5, 1935
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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1791433
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Patent number 1,791,433
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Issue date Feb 3, 1931
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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1791434
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Patent number 1,791,434
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Issue date Feb 3, 1931
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...