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Borehole acoustic telemetry clock synchronization system

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing
Patent

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Borehole acoustic telemetry system

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing
Patent

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Borehole acoustic telemetry system synchronous detector

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing
Patent

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Borehole acoustic telemetry system with phase shifted signal

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing
Patent

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Borehole data transmission apparatus

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids
Patent

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Borehole liquid acoustic wave transducer

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids
Patent

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Borehole logging apparatus for deep well drilling

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids
Reexamination Certificate

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Borehole measurement while drilling systems and methods

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids
Patent

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Borehole monitoring device and method

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing
Patent

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Borehole telemetry system automatic gain control

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing
Patent

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