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3640101
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Patent number 3,640,101
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Issue date Feb 8, 1972
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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2918813
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Patent number 2,918,813
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Issue date Dec 29, 1959
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...