R & O Mining Processing Ltd.

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Vancouver, CA

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Hydrometallurical recovery of copper and zinc from complex sulfide...
- Patent number 5,484,579
- Issue date Jan 16, 1996
- R & O Mining Processing Ltd.
- Robert N. O'Brien
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

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