4. Hydraulic and earth engineering
  5. Marine structure or fabrication thereof

Alfred Valantin

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

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Apparatus for laying underwater pipelines

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
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Method and a device for undersea drilling

Hydraulic and earth engineering – Marine structure or fabrication thereof
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Profile ID: LFUS-PAI-P-1370863

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