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US1851885A
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Process for the treatment of ores or materials containing copper and/or nickel
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US1843060A
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Metallurgy of ores or materials containing tin
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US1817865A
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Metallurgy of ores or materials containing tin
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US1780106A
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Extraction of tin from ores or materials containing tin
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US1786386A
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Extraction of tin from ores or materials containing tin
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US1569606A
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Apparatus for electrolyzing fused salts of metals and recovering the metals and acid radicles
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US1545385A
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Process for electrolyzing fused metallic salts
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US1599269A
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Treatment of lead-zinc sulphide ores, mattes, and the like
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US1545384A
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Apparatus for electrolyzing fused salts
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US1491653A
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Treatment of sulphide ores and equivalent metal-bearing materials for the recovery of useful products therefrom
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US1545383A
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Apparatus for electrolyzing fused salts
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US1359652A
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Process for the production of anhydrous magnesium chlorid or anhydrous double chlorids of magnesium
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US1359654A
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Production of magnesium or alloys of magnesium and by-products
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US1359653A
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Process and apparatus for the electrolytic decomposition of anhydrous magnesium chlorid and the production of magnesium or alloys thereof and chlorin
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US1350091A
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Manufacture of potassium chlorid from natural silicates, rocks, minerals, residues, or wastes containing potassium
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