4. Wells
  5. Processes
  6. With indicating, testing, measuring or locating

James D. Estes

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Device to determine free point

Wells – With electrical means – Valve
Patent

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Dual sensor freepoint tool

Wells – Processes – Freeing stuck object – grappling or fishing in well
Reexamination Certificate

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Free point tool with low mass sensor

Measuring and testing – Borehole or drilling – Downhole test
Reexamination Certificate

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Method and system for measurement of internal tube dimensions wi

Geometrical instruments – Gauge – Internal
Patent

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Reversal-resistant apparatus for tool orientation in a borehole

Wells – Processes – With indicating – testing – measuring or locating
Patent

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Profile ID: LFUS-PAI-P-645132

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