Helmut Vacek

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Weissenstein, AT

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Patents Grantslast 30 patents

Information Patent Grant
Gas purging plug for electric-arc furnaces and the corresponding el...
- Patent number 5,299,785
- Issue date Apr 5, 1994
- Radex-Heraklith Industriebeteiligungs Aktiengesellschaft
- Georgio Cappelli
- C21 - METALLURGY OF IRON