4. Wells
  5. Above ground apparatus
  6. Central valve or closure and lateral port

Edwin G. Murray

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Heavy duty rotating blowout preventor

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent

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Rotating blowout preventor with adaptor

Wells – Above ground apparatus – Central valve or closure and lateral port
Patent

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Profile ID: LFUS-PAI-P-1012132

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