Volker Hahn

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Leinfelden, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for producing underground pipes
- Patent number 4,647,256
- Issue date Mar 3, 1987
- Ed. Zublin Aktiengesellschaft
- Volker Hahn
- E21 - EARTH DRILLING MINING
Information Patent Grant
Overhead sound attenuating cover for roadways and railways
- Patent number 4,308,933
- Issue date Jan 5, 1982
- Ed. Zublin Aktiengesellschaft
- Volker Hahn
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Method of and arrangement for correcting the height of railway uppe...
- Patent number 4,232,822
- Issue date Nov 11, 1980
- Ed. Zublin Aktiengesellschaft
- Volker Hahn
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Rotary drum
- Patent number 4,168,915
- Issue date Sep 25, 1979
- Ed. Zublin Aktiengesellschaft
- Volker Hahn
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Space framework
- Patent number 4,121,398
- Issue date Oct 24, 1978
- Ed. Zublin Aktiengesellschaft
- Volker Hahn
- E04 - BUILDING