4. Boring or penetrating the earth
  5. With signaling, indicating, testing or measuring
  6. Measuring or indicating drilling fluid rate of flow

David Speed

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Method and apparatus for separating and measuring solids...

Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Reexamination Certificate

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Method and apparatus for treating pressurized drilling fluid...

Gas separation: processes – With control responsive to sensed condition – Pressure sensed
Reexamination Certificate

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Method of treating pressurized drilling fluid returns from a...

Gas separation: processes – With control responsive to sensed condition – Gas flow rate sensed
Reexamination Certificate

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Recovery of gas from drilling fluid returns in underbalanced dri

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Measuring or indicating drilling fluid rate of flow
Patent

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Side pocket mandrel orienting device with integrally formed loca

Wells – Means for guiding insertable element laterally of well axis
Patent

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Profile ID: LFUS-PAI-P-1303793

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