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Steel heating furnace
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Patent number 5,314,170
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Issue date May 24, 1994
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Nippon Furnace Kogyo Kaisha, Ltd.
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Takeshi Tada
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C21 - METALLURGY OF IRON
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Radiant tube burner
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Patent number 4,870,947
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Issue date Oct 3, 1989
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Nippon Furnace Kogyo Kaisha, Ltd.
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Masao Kawamoto
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Radiant tube burner
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Patent number 4,856,492
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Issue date Aug 15, 1989
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Nippon Furnace Kogyo Kaisha Ltd.
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Masao Kawamoto
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES