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- Pilot-plant production of electrolytic manganese ores from manganese ores from metals reserve stock piles at Deming, N. Mex., Cushman, Ark., and Philipsburg, Mont.
- Recovery of cobalt from manganese ores in the production of electrolytic manganese.
- Pilot-plant production of electrolytic manganese from Chamberlain, S. Dak., nodules
- Electrowinning of manganese from domestic ores
- Electrolytic manganese in acid and basic electric steel foundry practice and basic steel ingot production
- Semi-pilot-plant investigations on electro-winning manganese from chloride electrolytes