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Asko Parviainen
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Espoo, FI
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Hydrometallurgical process for the recovery of valuable metals from...
Patent number
4,452,762
Issue date
Jun 5, 1984
Outokumpu Oy
Sigmund P. Fugleberg
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...