Werner Floors

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Oer-Erkenschwick, DE

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Patents Grantslast 30 patents

Information Patent Grant
Ring seal for apertures of multi-shelled structures, especially of...
- Patent number 5,971,401
- Issue date Oct 26, 1999
- Beton - Und Monierbau GmbH
- Bernhard Lubbers
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING