Tunnel Aktiengesellschaft Tunnel Planungs-, Errichtungs- und Betriebs-Aktiengsellschaft

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Information Patent Grant
Method for the construction of long tunnel with a lining
- Patent number 5,324,139
- Issue date Jun 28, 1994
- Ingenieure Mayreder, Kraus & Co. Consult Gesellschaft m.b.H.
- Harald Wagner
- E21 - EARTH DRILLING MINING

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