Staffan Granstrom

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Ojebyn, SE

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Patents Grantslast 30 patents

Information Patent Grant
Direct current melting furnace with control of deflection of the el...
- Patent number 5,383,218
- Issue date Jan 17, 1995
- Danieli & C. Officine Meccanicue SpA.
- Kjell Bergman
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Container
- Patent number 5,106,063
- Issue date Apr 21, 1992
- ESSGE Systemteknik AB
- Staffan Granstrom
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Method and device for pre-heating waste metal for furnaces
- Patent number 4,812,117
- Issue date Mar 14, 1989
- NAB-Konsult
- Staffan Granstrom
- C21 - METALLURGY OF IRON