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

Stewart K. Willis

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Method and apparatus for deploying articles in deep waters

Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Reexamination Certificate

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Pipeline laying apparatus

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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Sea-going vessel and hull for sea-going vessel

Ships – Displacement-type hull
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1858358

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