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Shaft furnace
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Patent number 6,511,629
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Issue date Jan 28, 2003
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Deutsche Voest-Alpine Industrieanlagenbau GmbH
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Leopold Werner Kepplinger
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C21 - METALLURGY OF IRON
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Device for producing sponge iron
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Patent number 6,391,249
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Issue date May 21, 2002
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Deutsche Voest-Alpine Industrieanlagenbau GmbH
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Hado Heckmann
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C21 - METALLURGY OF IRON
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Shaft furnace
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Patent number 6,213,762
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Issue date Apr 10, 2001
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Deutsche Voest-Alpine Industrieanlagenbau GmbH
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Ernst Eichberger
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C21 - METALLURGY OF IRON
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Plant comprising a shaft
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Patent number 5,271,609
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Issue date Dec 21, 1993
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Voest-Alpine Industrieanlagenbau GmbH
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Leopold W. Kepplinger
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C21 - METALLURGY OF IRON
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