Detmar Arlt

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Duisburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process of making steel by melting sponge iron in an electric arc f...
- Patent number 4,490,168
- Issue date Dec 25, 1984
- Metallgesellschaft AG
- Lothar Formanek
- C21 - METALLURGY OF IRON