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Arrangement for underwater drilling of foundations

Boring or penetrating the earth – Boring a submerged formation – Boring with underwater tool drive prime mover
Patent

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Core sampler

Boring or penetrating the earth – Boring a submerged formation – Boring with underwater tool drive prime mover
Reexamination Certificate

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Deep draft drilling platform

Boring or penetrating the earth – Boring a submerged formation – Boring with underwater tool drive prime mover
Patent

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Downhole coring device

Boring or penetrating the earth – Boring a submerged formation – Boring with underwater tool drive prime mover
Reexamination Certificate

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Downhole drilling apparatus

Boring or penetrating the earth – Boring a submerged formation – Boring with underwater tool drive prime mover
Reexamination Certificate

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Method and apparatus for deepwater drilling

Boring or penetrating the earth – Boring a submerged formation – Boring with underwater tool drive prime mover
Patent

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Method and apparatus for driving a probe into the earth

Boring or penetrating the earth – Boring a submerged formation – Boring with underwater tool drive prime mover
Patent

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Method and apparatus for setting an underwater drilling system

Boring or penetrating the earth – Boring a submerged formation – Boring with underwater tool drive prime mover
Patent

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Method for the drilling of the initial phase of deep water...

Boring or penetrating the earth – Boring a submerged formation – Boring with underwater tool drive prime mover
Reexamination Certificate

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Pressure differential seafloor corer-carrier

Boring or penetrating the earth – Boring a submerged formation – Boring with underwater tool drive prime mover
Patent

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Water weighted corer

Boring or penetrating the earth – Boring a submerged formation – Boring with underwater tool drive prime mover
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