4. Communications, electrical: acoustic wave systems and devices
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Oscillating shear valve for mud pulse telemetry

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

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Oscillating shear valve for mud pulse telemetry

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0
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