Christof Holzapfel

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Dusseldorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the production of grain oriented magnetic steel sheets...
- Patent number 5,759,294
- Issue date Jun 2, 1998
- Thyssen Stahl AG
- Fritz Bolling
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for the production of grain oriented magnetic steel sheets...
- Patent number 5,711,825
- Issue date Jan 27, 1998
- Thyssen Stahl AG
- Fritz Bolling
- C21 - METALLURGY OF IRON