4. Wells
  5. Processes
  6. Graveling or filter forming

Larry A. Watkins

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Active controlled bottomhole pressure system and method with...

Boring or penetrating the earth – Processes
Reexamination Certificate

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Apparatus for maintaining a coiled electric conductor in a drill

Geometrical instruments
Patent

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Drilling efficiency through beneficial management of rock...

Boring or penetrating the earth – Processes
Reexamination Certificate

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Drilling efficiency through beneficial management of rock...

Boring or penetrating the earth – Natural vibration characteristic of an element of boring...
Reexamination Certificate

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Drilling efficiency through beneficial management of rock...

Boring or penetrating the earth – Processes
Reexamination Certificate

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Profile ID: LFUS-PAI-P-211560

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