4. Wells
  5. Packers or plugs
  6. With expanding anchor

Dannie R. Collins

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Method and apparatus for performing cutting operations in a...

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

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Two-way plugs for wells

Wells – Packers or plugs – With expanding anchor
Patent

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Profile ID: LFUS-PAI-P-744622

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