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3576588
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Patent number 3,576,588
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Issue date Apr 27, 1971
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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2992878
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Patent number 2,992,878
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Issue date Jul 18, 1961
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...