4. Electricity: conductors and insulators
  5. Conduits, cables or conductors
  6. Insulated

John Ryberg

Attorney

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Acoustic logging tool

Acoustics – Geophysical or subsurface exploration – Well logging
Reexamination Certificate

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Acoustic logging tool

Acoustics – Geophysical or subsurface exploration – Well logging
Reexamination Certificate

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Apparatus and method for actively cooling instrumentation in...

Wells – Processes – Heating – cooling or insulating
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Apparatus and method for measuring formation pressure using...

Measuring and testing – Borehole or drilling – Pressure measurement
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Apparatus and methods for monitoring output from pulsed...

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
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