4. Wells
  5. Processes
  6. Placing or shifting well part

James D. Brugman

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Blowout preventer and movable bonnet support

Valves and valve actuation – Blow-out preventers
Reexamination Certificate

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Blowout preventers and methods of use

Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Reexamination Certificate

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Blowout preventers and methods of use

Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Reexamination Certificate

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BOP with improved door connectors

Valves and valve actuation – Blow-out preventers – Radial reciprocating ram
Patent

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Door connectors

Valves and valve actuation – Blow-out preventers – Radial reciprocating ram
Patent

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Profile ID: LFUS-PAI-P-504066

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