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Method of winning aluminum metal from aluminous ore
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Patent number 4,265,716
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Issue date May 5, 1981
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The United States of America as represented by the United States Department o...
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Raouf O. Loutfy
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C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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1921705
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Patent number 1,921,705
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Issue date Aug 8, 1933
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C01 - INORGANIC CHEMISTRY
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1919310
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Patent number 1,919,310
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Issue date Jul 25, 1933
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C01 - INORGANIC CHEMISTRY
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1549398
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Patent number 1,549,398
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Issue date Aug 11, 1925
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C01 - INORGANIC CHEMISTRY