Igor A. E. Wilkomirsky

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Patents Grantslast 30 patents

Information Patent Grant
Process for the recovery of non-ferrous metals from sulphide ores a...
- Patent number 4,619,814
- Issue date Oct 28, 1986
- Provincial Holdings Ltd.
- Robert S. Salter
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...