US987947A
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Electrolytically refining alloys.
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GB190921674A
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An Improved Process for Utilizing Unmined Coal.
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CA123068A
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Process of gasifying unmined coal
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US927021A
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Process of treating arsenial ores and speiss.
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CA119240A
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Process of treating arsenical ores and speisses
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US923005A
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Process of treating nickel ores.
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US918650A
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Electrolytic process.
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US918648A
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Process of smelting zinc ores.
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US905281A
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Process of making manganese and ferromanganese.
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US905280A
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Metallurgical process.
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US891396A
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Treating anode slime from the electrolytic refining of lead.
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US918647A
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Treating anode slime from the electrolytic refining of lead.
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US891395A
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Treating slimes from electrolytic refining of lead.
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US918649A
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Acid-proof tank for the electrolytic refining of metals.
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US938634A
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Metallurgical process.
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GB190607277A
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Improvements in Making Aluminium.
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GB190602552A
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Improvements in Electric Furnaces.
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GB190512880A
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Improvements in Electric Conductors
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CA94677A
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Process of smelting sulphur bearing ores of lead
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US795886A
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Making aluminium.
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