Egberto Silva Filho

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Sao Paulo, BR

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Patents Grantslast 30 patents

Information Patent Grant
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- Patent number 4,923,507
- Issue date May 8, 1990
- Mamore Mineracao E Metalurgia S/A
- Egberto Silva
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...