4. Valves and valve actuation
  5. Blow-out preventers

Marvin R. Jones

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Annular blowout preventer

Valves and valve actuation – Blow-out preventers
Patent

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Blowout preventer and improved ram packer structure

Valves and valve actuation – Blow-out preventers
Patent

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Blowout preventers having shear rams

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature
Patent

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Casing hanger

Pipe joints or couplings – Serial,relatively movable portions – Linked ball and socket portions
Patent

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Device for removing a cork or other resilient stopper from the n

Tools – Receptacle closure remover – Screw type
Patent

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Profile ID: LFUS-PAI-P-495451

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