4. Metal working
  5. Method of mechanical manufacture
  6. Assembling or joining

Doyle F. Boutwell, Jr.

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Collar load support tubing running procedure

Metal working – Method of mechanical manufacture – Assembling or joining
Patent

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Method and apparatus for reforming tubular connections

Wells – Processes – Assembling well part
Reexamination Certificate

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Valve for an internal fill up tool and associated method

Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1710292

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