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

Erik Jan Rooduijn

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Installation for laying a pipeline on a floor located under wate

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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Method of supplying oil from a floating production structure...

Buoys – rafts – and aquatic devices – Buoy – For mooring a vessel
Reexamination Certificate

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Profile ID: LFUS-PAI-P-79486

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