Walter Siepmann

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Warstein-Belecke, DE

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Patents Grantslast 30 patents

Information Patent Grant
Valve housings made from steel, especially for gate valves
- Patent number 4,243,204
- Issue date Jan 6, 1981
- Forval S.A.
- Walter Siepmann
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...