4. Wells
  5. Above ground apparatus
  6. Having retractable pipe section to allow closing of gate...

Bernd Pietras

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Tong for wellbore operations

Tools – Wrench – screwdriver – or driver therefor – Machine
Reexamination Certificate

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Tong for wellbore operations

Boring or penetrating the earth – With above-ground means to feed tool
Reexamination Certificate

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Wellbore circulation system

Wells – Above ground apparatus – Having retractable pipe section to allow closing of gate...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2500309

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