4. Wells
  5. Expansible anchor or casing
  6. Fluid pressure actuated
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Device for anchoring a probe in a well by spreading mobile ancho

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Device for supporting, raising and lowering duct in deep bore ho

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Device provided with retractable arms for the anchoring of an in

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Directional drilling azimuth control system

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Downhole lock system

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Downhole well tool and anchoring assembly

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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