Thyssen Edelstahlwarke AG

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Information Patent Grant
Precipitation hardening ferritic-pearlitic steel valve
- Patent number 5,286,311
- Issue date Feb 15, 1994
- Thyssen Edelstahlwarke AG
- Volker Schuler
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

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