4. Communications: electrical
  5. Wellbore telemetering or control
  6. Selective control of subsurface equipment

Matthew Hackworth

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Borehold telemetry system

Communications: electrical – Wellbore telemetering or control – Selective control of subsurface equipment
Reexamination Certificate

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Borehold telemetry system

Communications: electrical – Wellbore telemetering or control – Selective control of subsurface equipment
Reexamination Certificate

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Impeller for centrifugal pump

Rotary kinetic fluid motors or pumps – Centripetal pump
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2395842

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