4. Machine element or mechanism
  5. Gyroscopes
  6. With pick off

Geoffrey C. Downton

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Bidirectional drill string telemetry for measuring and...

Boring or penetrating the earth – With signaling – indicating – testing or measuring
Reexamination Certificate

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Compliantly coupled cutting system

Boring or penetrating the earth – Processes
Reexamination Certificate

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Drill bit

Boring or penetrating the earth – Bit or bit element – With bit guide or bore wall compacting device
Reexamination Certificate

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Gyroscopes

Machine element or mechanism – Gyroscopes – With pick off
Patent

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Motor bit system

Boring or penetrating the earth – Bit or bit element – With bit guide or bore wall compacting device
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1995191

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