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2641803
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Patent number 2,641,803
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Issue date Jun 16, 1953
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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2490157
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Patent number 2,490,157
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Issue date Dec 6, 1949
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1472419
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Patent number 1,472,419
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Issue date Oct 30, 1923
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1408460
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Patent number 1,408,460
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Issue date Mar 7, 1922
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING