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2641317
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Patent number 2,641,317
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Issue date Jun 9, 1953
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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2323700
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Patent number 2,323,700
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Issue date Jul 6, 1943
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2313986
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Patent number 2,313,986
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Issue date Mar 16, 1943
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B26 - HAND CUTTING TOOLS CUTTING SEVERING
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2234330
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Patent number 2,234,330
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Issue date Mar 11, 1941
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1806475
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Patent number 1,806,475
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Issue date May 19, 1931
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1509617
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Patent number 1,509,617
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Issue date Sep 23, 1924
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...