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Offshore drilling of large diameter holes in rock formations

Hydraulic and earth engineering – Marine structure or fabrication thereof – Cast in situ
Patent

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Offshore drilling platform protection device

Hydraulic and earth engineering – Marine structure or fabrication thereof – With work deck vertically adjustable relative to floor
Patent

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Offshore drilling platform support

Hydraulic and earth engineering – Marine structure or fabrication thereof – Floatable to site and supported by marine floor
Patent

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Offshore drilling rig transfer

Hydraulic and earth engineering – Marine structure or fabrication thereof – With horizontally movable work deck
Patent

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Offshore drilling/production platform with a retractable work de

Hydraulic and earth engineering – Marine structure or fabrication thereof – With anchoring of structure to marine floor
Patent

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Offshore exploration or production operation

Hydraulic and earth engineering – Marine structure or fabrication thereof – Floatable to site and supported by marine floor
Reexamination Certificate

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Offshore fixed platform and method of erecting the same

Hydraulic and earth engineering – Marine structure or fabrication thereof – With work deck vertically adjustable relative to floor
Patent

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Offshore fluid transfer system and method

Hydraulic and earth engineering – Marine structure or fabrication thereof – Floatable to site and supported by marine floor
Reexamination Certificate

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Offshore gas flare system

Hydraulic and earth engineering – Marine structure or fabrication thereof – With anchoring of structure to marine floor
Patent

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Offshore jack-up rig locking system

Hydraulic and earth engineering – Marine structure or fabrication thereof – With work deck vertically adjustable relative to floor
Patent

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Offshore jack-up rig locking system

Hydraulic and earth engineering – Marine structure or fabrication thereof – With work deck vertically adjustable relative to floor
Patent

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Offshore jacket having increased buoyancy

Hydraulic and earth engineering – Marine structure or fabrication thereof – With anchoring of structure to marine floor
Patent

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Offshore jacket installation

Hydraulic and earth engineering – Marine structure or fabrication thereof – Floatable to site and supported by marine floor
Patent

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Offshore jackup elevating and leg guide arrangement and hull-to-

Hydraulic and earth engineering – Marine structure or fabrication thereof – With work deck vertically adjustable relative to floor
Patent

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Offshore jackup hull-to-legs load transfer device and elevating

Hydraulic and earth engineering – Marine structure or fabrication thereof – With work deck vertically adjustable relative to floor
Patent

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Offshore jackup rig locking apparatus and method

Hydraulic and earth engineering – Marine structure or fabrication thereof – With work deck vertically adjustable relative to floor
Patent

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Offshore lift platform

Hydraulic and earth engineering – Marine structure or fabrication thereof – With work deck vertically adjustable relative to floor
Patent

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Offshore marine structure with corrosion protection

Hydraulic and earth engineering – Marine structure or fabrication thereof – Structure protection
Patent

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Offshore multi-stay platform structure

Hydraulic and earth engineering – Marine structure or fabrication thereof – With anchoring of structure to marine floor
Patent

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Offshore oil drilling and producing platform provided with impro

Hydraulic and earth engineering – Marine structure or fabrication thereof – With anchoring of structure to marine floor
Patent

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