4. Wells
  5. Detents or clutches
  6. Lug in closed branched slot

Vincent P. Zeller

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Apparatus for actuating a pressure delivery system of a...

Measuring and testing – Borehole or drilling – Fluid flow measuring or fluid analysis
Reexamination Certificate

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Control method for a recording device

Boots – shoes – and leggings
Patent

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Downhole memory gauge protection system

Measuring and testing – Borehole or drilling – Downhole test
Patent

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High pressure gauge carrier

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Patent

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Hydraulic control and actuation system for downhole tools

Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Reexamination Certificate

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Profile ID: LFUS-PAI-P-687310

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