Wilhelm Sieweke

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Dortmund, DE

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Patents Grantslast 30 patents

Information Patent Grant
Production of castings containing steel tubes
- Patent number 4,832,106
- Issue date May 23, 1989
- Hoesch Werke Aktiengesellschaft
- Heinz L. Bucking
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Gate arrangement for counterpressure blast furnaces
- Patent number 4,216,946
- Issue date Aug 12, 1980
- Paul Wurth S.A.
- Wilhelm Sieweke
- C21 - METALLURGY OF IRON