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Tunnel interior construction
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Patent number 5,556,676
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Issue date Sep 17, 1996
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Nisshin Chemical Industry Co. Ltd.
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Masafumi Fukumoto
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E21 - EARTH DRILLING MINING
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Tank lined with a chemical-resistant sheet
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Patent number 5,522,522
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Issue date Jun 4, 1996
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Nisshin Chemical Industry Co., Ltd.
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Masafumi Fukumoto
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Heat exchanging device
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Patent number 4,538,678
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Issue date Sep 3, 1985
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Nisshin Chemical Industry Co., Ltd.
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Masafumi Fukumoto
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F28 - HEAT EXCHANGE IN GENERAL
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Exhaust gas suppressor
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Patent number 4,476,838
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Issue date Oct 16, 1984
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Nissin Jabara Industries Co., Ltd.
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Masafumi Fukumoto
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F28 - HEAT EXCHANGE IN GENERAL
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Exhaust gas suppressor
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Patent number 4,362,143
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Issue date Dec 7, 1982
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Nissin Jabara Industries Co., Ltd.
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Masafumi Fukumoto
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS