4. Boring or penetrating the earth
  5. Means traveling with tool to constrain tool to bore along...

Graham Watson

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Choke device

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along...
Patent

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Gravel inflated isolation packer

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Rotary drill bits

Boring or penetrating the earth – Bit or bit element – With fluid conduit lining or element
Patent

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Rotary drill bits having nozzles to enhance recirculation

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent

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Sand control method and apparatus

Wells – Processes – Graveling or filter forming
Reexamination Certificate

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Profile ID: LFUS-PAI-P-191478

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