4. Pipe joints or couplings
  5. Having plural independent paths
  6. For concentric tubes or pipes

Stephane J. Virally

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Automatic downlink system

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

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Automatic downlink system

Wells – Processes – Vibrating the earth or material in or being placed in the...
Reexamination Certificate

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Automatic downlink system

Boring or penetrating the earth – Processes – Boring curved or redirected bores
Reexamination Certificate

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Automatic downlink system

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

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Debris free valve apparatus

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

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Profile ID: LFUS-PAI-P-2286540

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