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Offshore drilling of large diameter holes in rock formations
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Self-contained offshore platform
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Pipe lining apparatus
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Submersible hammer
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Underwater storage of oil
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Ground anchor installation
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Cement lining of pipes
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Jack-up drilling rig:conductor guide
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Off-shore towers wedging jacket to pile using bias weights
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Concrete wall construction
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Method and apparatus for cement lining of pipes
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Underwater driving of piles
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Self-contained offshore platform
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