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GB191517743A
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Process for Facilitating the Extraction of Tin from Cassiterite and Oxidation Products of Tin.
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US1124315A
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Process for electrolytically refining tin.
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GB191220557A
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Method and Apparatus for Electrolytically Recovering and Refining Tin.
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US962910A
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Apparatus for the continuous manufacture of filaments.
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US972893A
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Manufacture of filaments for illuminating and heating purposes.
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GB190804461A
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Improved Process of and Means for Manufacturing Filaments for Illuminating and Heating Purposes.
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US973535A
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Process of manufacturing filaments and the filament produced thereby.
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US904139A
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Process of making filaments for lighting and heating.
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GB190427707A
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The Manufacture of an Indestructible Filament for Gas and Electric Lamps for Lighting and Heating Purposes.
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