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TitleDateType
1 A process for the treatment of oxidized zinc ores1917Text
2 Igneous concentration of oxidized ores of zinc1916-05Text
3 The manufacture of zinc oxide directly from oxidized ores1920Text
4 Mining and milling of complex lead and zinc ores in the Park City district, Utah1916Text
5 Proposed innovations in the metallurgy of zinc1914-08Text
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