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Coal gasifier
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Patent number 4,773,917
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Issue date Sep 27, 1988
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Babcock-Hitachi Kabushiki Kaisha
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Atsushi Morihara
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Method of coal upgrading
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Patent number 4,523,927
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Issue date Jun 18, 1985
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Hitachi, Ltd.
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Toshio Kuge
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Method of upgrading low-rank coal
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Patent number 4,511,363
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Issue date Apr 16, 1985
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Hitachi, Ltd.
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Yoichi Nakamura
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Upgrading method of low-rank coal
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Patent number 4,461,627
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Issue date Jul 24, 1984
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Hitachi, Ltd.
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Hiroshi Yokoyama
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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