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3911164
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Patent number 3,911,164
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Issue date Oct 7, 1975
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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3854946
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Patent number 3,854,946
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Issue date Dec 17, 1974
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...