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3869250
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Patent number 3,869,250
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Issue date Mar 4, 1975
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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3744968
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Patent number 3,744,968
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Issue date Jul 10, 1973
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...