Gunter Gelsdorf

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Wiesbaden, DE

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Patents Grantslast 30 patents

Information Patent Grant
Furnace hearth
- Patent number 4,829,538
- Issue date May 9, 1989
- Didier-Werke AG
- Hartmut Hlawatschek
- C21 - METALLURGY OF IRON
Information Patent Grant
Electrode for an electric arc furnace
- Patent number 4,648,097
- Issue date Mar 3, 1987
- Didier-Werke AG
- Hartmut Hlawatschek
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR