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Joint sealing member
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Patent number 5,390,939
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Issue date Feb 21, 1995
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C. I. Kasei Co., Ltd.
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Michiyoshi Terauchi
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E04 - BUILDING
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-
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Waterstop
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Patent number 4,740,404
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Issue date Apr 26, 1988
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C. I. Kasei, Co. Ltd.
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Shozo Otsugu
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES