Helmut Schwaighofer

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Patents Grantslast 30 patents

Information Patent Grant
Electric melting furnace arrangement as well as a method of influen...
- Patent number 4,697,274
- Issue date Sep 29, 1987
- Voest-Alpine Aktiengesellschaft
- Bernhard Enkner
- C21 - METALLURGY OF IRON
Information Patent Grant
Tilting channel arrangement for guiding a molten material
- Patent number 4,678,168
- Issue date Jul 7, 1987
- Voest-Alpine Aktiengesellschaft
- Bernhard Enkner
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Electric furnace arrangement
- Patent number 4,617,672
- Issue date Oct 14, 1986
- Voest-Alpine Aktiengesellschaft
- Bernhard Enkner
- C21 - METALLURGY OF IRON