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2238162
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Patent number 2,238,162
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Issue date Apr 15, 1941
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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1379618
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Patent number 1,379,618
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Issue date May 31, 1921
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...