4. Boring or penetrating the earth
  5. Boring a submerged formation
  6. Boring from floating support with submerged independent...

David J. Rohweller

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Deployable/retractable telescoping mast assembly and method

Static structures (e.g. – buildings) – Mechanism operated relatively movable shaft assembly – With spring-actuated return
Patent

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Drill ahead tool

Boring or penetrating the earth – Boring a submerged formation – Boring from floating support with submerged independent...
Patent

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Snap type pipe connector

Pipe joints or couplings – With assembly means or feature – Guide and support
Patent

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Profile ID: LFUS-PAI-P-700421

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