4. Hydraulic and earth engineering
  5. Subterranean or submarine pipe or cable laying, retrieving,...
  6. Submerging, raising, or manipulating line of pipe or cable...

Francis Cour

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Apparatus for exploring the subsoil

Boring or penetrating the earth – With magazine for successively moving unconnected – oriented...
Reexamination Certificate

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Process and device for temporarily supporting the walls of a tre

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent

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Underwater exploration device

Ships – Submersible device
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1516914

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