4. Boring or penetrating the earth
  5. With signaling, indicating, testing or measuring
  6. Indicating, testing or measuring a condition of the formation

Michael J. M. Walsh

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Method and apparatus for data transmission in a well bore contai

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Method and apparatus for data transmission in a well using a fle

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Indicating – testing or measuring a condition of the formation
Patent

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Method and apparatus for wire line protection in a well

Wells – Processes – Placing or shifting well part
Patent

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Method and means for obtaining data representing a parameter of

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Profile ID: LFUS-PAI-P-182346

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