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Publication of CA68346ApublicationCriticalpatent/CA68346A/fr
Improvements in the Treatment of Copper Ores or Minerals for the Obtainment of Copper and other Metals therefrom and the Recovery and Treatment of Bye-products of the Process.
Improvements in the Treatment of Slimes or Tailings for the Extraction of Gold or Silver therefrom by Means of Solvents, and Apparatus for that Purpose.