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| View Original: | Process of reducing aluminium from its fluoride salts by electrolysis.png (1492x2452) | |||
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| Keywords: Process of reducing aluminium from its fluoride salts by electrolysis.png Hall's patent on aluminum electrolysis https //www google com/patents/US400664 2016-08-04 Charles Martin Hall 1914 PD-US-patent 1886 patents Charles Martin Hall U S Patent drawings | ||||
