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

Pietro Lunardi

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Embankment formed by preformed collaborating assemblable element

Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent

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Method for building large span tunnels by means of a cellular ar

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

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Method for widening road, superhighway or railway tunnels,...

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

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Profile ID: LFUS-PAI-P-747754

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