4. Implements or apparatus for applying pushing or pulling force
  5. Step-by-step traveling bar
  6. Pawl actuated

James D. Howell

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Drill spring tension limiting device for floating drilling vesse

Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Pawl actuated
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Method and apparatus for compensating well control instrumentati

Boring or penetrating the earth – Boring a submerged formation – Boring from floating support with submerged independent...
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Profile ID: LFUS-PAI-P-888739

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