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

Robert W. McCollum

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Apparatus for treating wells

Wells – Packers or plugs – With expanding anchor
Patent

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Method and apparatus for disabling electrical equipment

Electrical connectors – With unauthorized connection preventer – e.g. – key or...
Reexamination Certificate

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Method and apparatus for treating wells

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

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Pivotable stanchion assembly

Illumination – Supports – Pole or post type support
Patent

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Profile ID: LFUS-PAI-P-1128443

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