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US1833322A
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Reverberatory smelting furnace
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ES120694A1
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Method for the service of a reverberatory melting furnace.
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ES120695A1
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Melting furnace of reverberation.
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GB356559A
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Reverberatory smelting furnace and method of operating the same
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US1833321A
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Method of operating reverberatory furnaces and smelting ores therein
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ES114067A1
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A process to produce iron or steel directly from the ore and regulate its sulfur content.
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ES113965A1
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A procedure to reduce iron ores.
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GB316303A
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Improvements in and relating to process of producing iron or steel directly from the ore and controlling the sulphur content thereof
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GB315760A
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Improvements in and relating to the manufacture of iron and other metals
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US1863622A
|
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Process of producing iron or steel directly from the ore and controlling the sulphur content thereof
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US1833320A
|
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Process of reducing iron ores
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CA305871A
|
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Process of reducing iron ores
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CA305872A
|
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Process of producing iron or steel directly from the ore
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CA318058A
|
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Reverberatory smelting furnace
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