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Method and device for underwater modular crossing construction

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

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Method of creating a cold water conduit to be used in ocean ther

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

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Method of tunnel construction employing submerged caisson

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

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Seismic joint for underwater floating tunnels

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

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Submerged tunnel and a method of and means for constructing a su

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

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Transportation underwater tunnel system

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

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Transportation underwater tunnel system

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

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Underwater tunnel and an underwater mooring apparatus to moor th

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

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Underwater tunnel construction

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Subaqueous
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