Wolfgang Dittrich

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Brand-Erbisdorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method of utilizing secondary raw materials containing iron, zinc a...
- Patent number 6,494,933
- Issue date Dec 17, 2002
- B. U. S. Zinkrecycling Freiberg GmbH
- Eberhard Saage
- C21 - METALLURGY OF IRON