John S. Preston

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Randburg, ZA

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Patents Grantslast 30 patents

Information Patent Grant
Selective solvent extraction using organophosphorus and carboxylic...
- Patent number 4,528,167
- Issue date Jul 9, 1985
- Council for Mineral Technology
- John S. Preston
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...