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Damping device for an output shaft in a gearbox

E - Fixed Constructions – 21 – B
Patent

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Dart for use in cementing of well casings

E - Fixed Constructions – 21 – B
Patent

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Dart launching system for sub-sea cementing head or sub-sea...

E - Fixed Constructions – 21 – B
Patent

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Dart-operated big bore by-pass valve

E - Fixed Constructions – 21 – B
Patent

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Data acquisition system

E - Fixed Constructions – 21 – B
Patent

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Data aggregation for drilling operations

E - Fixed Constructions – 21 – B
Patent

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Data compression method for use in downhole applications

E - Fixed Constructions – 21 – B
Patent

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Data logger plunger

E - Fixed Constructions – 21 – B
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Data signalling apparatus for well drilling tools

E - Fixed Constructions – 21 – B
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Data signalling apparatus for well drilling tools

E - Fixed Constructions – 21 – B
Patent

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Data signalling apparatus for well drilling tools

E - Fixed Constructions – 21 – B
Patent

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Data transfer system

E - Fixed Constructions – 21 – B
Patent

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Data transmission in pipeline systems

E - Fixed Constructions – 21 – B
Patent

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Data transmission system

E - Fixed Constructions – 21 – B
Patent

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Data transmission system for a downhole component

E - Fixed Constructions – 21 – B
Patent

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Dc powered subsea inverter

E - Fixed Constructions – 21 – B
Patent

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Dead string completion assembly with injection system and...

E - Fixed Constructions – 21 – B
Patent

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Deadleg

E - Fixed Constructions – 21 – B
Patent

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Debris barrier for downhole tools

E - Fixed Constructions – 21 – B
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Debris barrier with a downhole tool setting assembly

E - Fixed Constructions – 21 – B
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