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2904840
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Patent number 2,904,840
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Issue date Sep 22, 1959
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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2671770
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Patent number 2,671,770
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Issue date Mar 9, 1954
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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2250483
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Patent number 2,250,483
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Issue date Jul 29, 1941
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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1915072
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Patent number 1,915,072
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Issue date Jun 20, 1933
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...