John A. Thomas

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Salvador, BR

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Patents Grantslast 30 patents

Information Patent Grant
Hydrometallurgical processing of precious metal-containing materials
- Patent number 4,615,731
- Issue date Oct 7, 1986
- Inco Limited
- John A. Thomas
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...