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Porous hollow fiber
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Patent number 4,992,332
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Issue date Feb 12, 1991
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UBE Industries, Ltd.
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Eiichi Kamei
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Novel triazine addition compounds
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Patent number 4,663,372
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Issue date May 5, 1987
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UBE Industries Ltd.
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Hidemasa Okamoto
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Porous hollow fiber
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Patent number 4,654,265
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Issue date Mar 31, 1987
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UBE Industries, Ltd.
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Eiichi Kamei
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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Triazine addition compounds
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Patent number 4,574,154
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Issue date Mar 4, 1986
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UBE Industries, Ltd.
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Hidemasa Okamoto
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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