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ES204357A3
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A gas filter, intended in particular for high ovens (Machine-translation by Google Translate, not legally binding)
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DE936004C
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Gas filter with filter hoses suspended from round openings of a vibrating plate surrounded by a housing
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DE867552C
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Shaft furnace, especially blast furnace
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US2627307A
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Concentric gas and air burner
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US2567007A
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Blast furnace
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US2540092A
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Process and apparatus for forming plastic material
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US2599158A
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Cylindrical converter
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US2591789A
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Apparatus for reducing metallic oxides
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GB652772A
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Improvement in method for hot-rolling flat metal products
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US2547685A
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Reduction of metallic oxides
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US2597501A
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Blast furnace support
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US2500154A
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Recovery of asbestos from asbestos tailings
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US2548876A
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Reduction furnace
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US2511400A
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Preparation of metallic oxides for reduction
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ES171878A1
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Procedure for the electrostatic dust precipitation
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ES169854A1
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Improvements in the apparatus for handling and treatment of flexible metal plates
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US2457861A
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Method of manufacturing metal products
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ES167106A1
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Improvements in electric ovens
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GB583195A
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Improved chucking, rolling and the like mechanism
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GB580154A
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An improved rubber substitute
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