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US1036996A
|
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Electric induction-furnace.
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US1065605A
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Process of removing sulfur and phosphorus from iron and similar metals.
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US1060078A
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Process of making manganese steel.
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US1185394A
|
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Process of melting scrap metal.
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US1056900A
|
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Process of desulfurizing ores and metals.
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US1034788A
|
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Process of extracting and refining metals and ores.
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US1070337A
|
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Electric furnace.
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US1034787A
|
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Process of refining metals and alloys.
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US1034786A
|
|
Process of producing alloy steel.
|
|
US1034785A
|
|
Method of producing refined metals and alloys.
|
|
US1034784A
|
|
Method of producing refined metals and alloys.
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