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Accelerometer caliper while drilling

Measuring and testing – Borehole or drilling – During drilling
Reexamination Certificate

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Acoustic wave transmission system and method for...

Measuring and testing – Borehole or drilling – During drilling
Reexamination Certificate

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Apparatus and method for downhole dynamics measurements

Measuring and testing – Borehole or drilling – During drilling
Reexamination Certificate

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Apparatus and method for formation testing while drilling...

Measuring and testing – Borehole or drilling – During drilling
Reexamination Certificate

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Apparatus and method for measuring forces on well logging...

Measuring and testing – Borehole or drilling – During drilling
Reexamination Certificate

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Apparatus and method of monitoring and signaling for...

Measuring and testing – Borehole or drilling – During drilling
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Apparatus for measuring downhole drilling efficiency parameters

Measuring and testing – Borehole or drilling – During drilling
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Apparatus for measuring forces on well logging instruments

Measuring and testing – Borehole or drilling – During drilling
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Apparatus for weight on bit measurements, and methods of...

Measuring and testing – Borehole or drilling – During drilling
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Apparatus for weight on bit measurements, and methods of...

Measuring and testing – Borehole or drilling – During drilling
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Atomic clock for downhole applications

Measuring and testing – Borehole or drilling – During drilling
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Atomic clock for downhole applications

Measuring and testing – Borehole or drilling – During drilling
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