4. Material or article handling
  5. Marine loading or unloading system
  6. Marine vessel to/from shore

Dennis Earl Calkins

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Deep water lowering apparatus

Material or article handling – Marine loading or unloading system – Marine vessel to/from shore
Patent

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Pipeline recovery tool

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

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Profile ID: LFUS-PAI-P-1506075

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