4. Hydraulic and earth engineering
  5. Underground passageway, e.g., tunnel
  6. Boring

Gunnar Lah

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Method of and apparatus for the lining of a tunnel with concrete

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring
Patent

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Process and apparatus for continuously lining a tunnel with extr

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining
Patent

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Process for continuously lining a tunnel with extruded concrete

Plastic and nonmetallic article shaping or treating: processes – Forming structural installations in situ – Sequentially molding in situ different portions or layers on...
Patent

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Profile ID: LFUS-PAI-P-595704

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