4. Measuring and testing
  5. Borehole or drilling
  6. Downhole test

Wade M. Johnson, Jr.

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Automatic gain control of formation measurements by varying indu

Boots – shoes – and leggings
Patent

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Combined eddy current and leakage field detector for well bore p

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent

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Dynamic range control of electrode pad current in well logging t

Boots – shoes – and leggings
Patent

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Subsurface formation testing apparatus

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Profile ID: LFUS-PAI-P-1395563

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