Friedrich Risse

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Bochum-Querenburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing a metal casing for gate valves used in nuc...
- Patent number 4,416,409
- Issue date Nov 22, 1983
- Thyssen Industrie AG
- Erwin Muller
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for manufacturing metal casings for accessories and particul...
- Patent number 4,349,948
- Issue date Sep 21, 1982
- Thyssen Industrie AG
- Erwin Muller
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus and method for manufacturing a metal casing particularly...
- Patent number 4,319,736
- Issue date Mar 16, 1982
- Thyssen Industrie AG
- Erwin Muller
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR