4. Fluid handling
  5. Processes

George N. Proper

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Seal for high-pressure pumping system

Seal for a joint or juncture – Seal between relatively movable parts – Piston ring or piston ring expander or seat therefor
Reexamination Certificate

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Stretch valve method and apparatus

Fluid handling – Processes
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Tight-spot fitting and driver, and method of use thereof

Tools – Wrench – screwdriver – or driver therefor – Having work engaging and force exerting portion inserted...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1306688

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