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Hollow fiber membrane
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Patent number 6,447,679
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Issue date Sep 10, 2002
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Mitsubishi Rayon Company, Limited
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Kenji Watari
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Hollow fiber membrane module
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Patent number 5,922,201
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Issue date Jul 13, 1999
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Mitsubishi Rayon Co., Ltd.
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Hisayoshi Yamamori
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Hollow fiber membrane module
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Patent number 5,480,553
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Issue date Jan 2, 1996
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Mitsubishi Rayon Co., Ltd.
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Hisayoshi Yamamori
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL