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

Jorg A. Angehrn

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Depth dependent multiple logging system

Communications: electrical – Continuously variable indicating – With meter reading
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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Electrical phase measurement means and method for accurate deter

Communications: electrical – Continuously variable indicating – With meter reading
Patent

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Flexible mud excluder for borehole televiewer

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Interferometric means and method for accurate determination of f

Optics: measuring and testing – By particle light scattering – With photocell detection
Patent

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Profile ID: LFUS-PAI-P-43751

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