Gebr. Eikhoff Maschinenfabrik u. Eisengiesserei mbH

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Bochum, DE

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Process and device for lining tunnels and ducts having circular and...
- Patent number 5,171,105
- Issue date Dec 15, 1992
- Gebr. Eikhoff Maschinenfabrik u. Eisengiesserei mbH
- Heinrich Grotenhofer
- G02 - OPTICS

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