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Reactor for iron making
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Patent number 4,790,516
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Issue date Dec 13, 1988
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Daido Tokushuko Kabushiki Kaisha
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Saburo Sugiura
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C21 - METALLURGY OF IRON
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Scrap melting method
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Patent number 4,706,258
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Issue date Nov 10, 1987
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Daido Tokushuko Kabushiki Kaisha
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Saburo Sugiura
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C21 - METALLURGY OF IRON
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Powdered coal burner
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Patent number 4,614,159
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Issue date Sep 30, 1986
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Daido Tokushuko Kabushiki Kaisha
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Saburo Sugiura
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Reactor iron making
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Patent number 4,605,437
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Issue date Aug 12, 1986
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Daido Tokushuko Kabushiki Kaisha
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Saburo Sugiura
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C21 - METALLURGY OF IRON
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