Otmar Schreyegg

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Geretsried, DE

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Patents Grantslast 30 patents

Information Patent Grant
Segmental tunnel lining consisting of reinforced concrete tubbings
- Patent number 4,662,773
- Issue date May 5, 1987
- Phillip Holzman Aktiengesellschaft
- Theodor Baumann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Molding device for sub-soil curtain wall sections
- Patent number 4,499,699
- Issue date Feb 19, 1985
- Philipp Holzmann Aktiengesellschaft
- Theodor Baumann
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING