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Michelle A. Spieth
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Cardiff, AU
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last 30 patents
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Patent Grant
Recovery of gold and silver from complex refractory sulphide ores b...
Patent number
5,262,136
Issue date
Nov 16, 1993
CRA Services Limited
Trevor J. Smith
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...