4. Electricity: measuring and testing
  5. Measuring, testing, or sensing electricity, per se
  6. Frequency of cyclic current or voltage

Pierre Grimaldi

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Logging method and apparatus for measuring earth formation resis

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports
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Method and apparatus for the determination of the thickness of a

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
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Profile ID: LFUS-PAI-P-1752228

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