Roofs

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Patents Grantslast 30 patents

Information Patent Grant
Electric furnace arrangement
- Patent number 4,841,542
- Issue date Jun 20, 1989
- Voest-Alpine Aktiengesellschaft
- Ernst Zajicek
- C21 - METALLURGY OF IRON
Information Patent Grant
Inclined arrangement of the support surfaces of a furnace body and...
- Patent number 4,455,660
- Issue date Jun 19, 1984
- BBC Brown, Boveri & Company, Ltd.
- Karl Buhler
- C21 - METALLURGY OF IRON
Information Patent Grant
1665205
- Patent number 1,665,205
- Issue date Apr 10, 1928
- F27 - FURNACES KILNS OVENS RETORTS