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3347617
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Patent number 3,347,617
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Issue date Oct 17, 1967
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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1867035
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Patent number 1,867,035
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Issue date Jul 12, 1932
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...