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Pipe string lift system

Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Clutch actuated
Patent

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Releasable clamping assembly for use with hydraulic jacking appa

Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Clutch actuated
Patent

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Releasable gripper assembly for a jacking mechanism

Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Clutch actuated
Patent

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Sliding shuttering raising device for the continuous production

Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Clutch actuated
Patent

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Sucker rod adjustment tool

Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Clutch actuated
Patent

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Tilt-up/jack-up off-shore drilling apparatus and method

Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Clutch actuated
Patent

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Uplift assembly

Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Clutch actuated
Patent

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Wall lifter

Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Clutch actuated
Patent

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Wall lifter

Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Clutch actuated
Patent

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