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

Walter E. Gray, Jr.

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Method for recovering wet buckled pipe

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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Pipeline recovery head

Handling: hand and hoist-line implements – Grapple – Expanding
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Profile ID: LFUS-PAI-P-1166174

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