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Yarn of entangled fibers
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Patent number 4,118,921
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Issue date Oct 10, 1978
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E. I. Du Pont de Nemours and Company
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Dustin Stetson Adams
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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3377663
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Patent number 3,377,663
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Issue date Apr 16, 1968
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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2784458
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Patent number 2,784,458
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Issue date Mar 12, 1957
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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2649623
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Patent number 2,649,623
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Issue date Aug 25, 1953
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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2638634
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Patent number 2,638,634
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Issue date May 19, 1953
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING