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Fibres
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Patent number 3,949,762
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Issue date Apr 13, 1976
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Anthony Alfred West
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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3114672
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Patent number 3,114,672
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Issue date Dec 17, 1963
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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3070487
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Patent number 3,070,487
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Issue date Dec 25, 1962
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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2600504
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Patent number 2,600,504
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Issue date Jun 17, 1952
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE