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Non-cryogenic nitrogen for on-site downhole drilling and post dr

Boring or penetrating the earth – Processes – Boring with specific fluid
Patent

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Non-cryogenic nitrogen for on-site downhole drilling and post dr

Boring or penetrating the earth – Processes – Boring with specific fluid
Patent

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Non-cryogenic nitrogen for on-site downhole drilling and post dr

Boring or penetrating the earth – Processes – Boring with specific fluid
Patent

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Non-cryogenic nitrogen for on-site downhole drilling and...

Boring or penetrating the earth – Processes – Boring with specific fluid
Reexamination Certificate

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Non-cryogenic nitrogen for on-site downhole drilling and...

Boring or penetrating the earth – Processes – Boring with specific fluid
Reexamination Certificate

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Non-cryogenic production of nitrogen for on-site injection in do

Boring or penetrating the earth – Processes – Boring with specific fluid
Patent

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Nozzle for jet drilling and associated method

Boring or penetrating the earth – Processes – Boring with specific fluid
Reexamination Certificate

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Nozzle placement in a diamond rotating bit including a pilot bit

Boring or penetrating the earth – Processes – Boring with specific fluid
Patent

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Nozzle unit and method for excavating a hole in an object

Boring or penetrating the earth – Processes – Boring with specific fluid
Reexamination Certificate

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