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Floating offshore structure
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Patent number 4,571,125
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Issue date Feb 18, 1986
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Mitsui Engineering and Shipbuilding Company, Limited
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Masanao Oshima
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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Floating offshore structure
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Patent number 4,519,728
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Issue date May 28, 1985
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Mitsui Engineering and Shipbuilding Company, Ltd.
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Masanao Oshima
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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Ship with improved stern structure
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Patent number 4,309,172
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Issue date Jan 5, 1982
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Mitsui Engineering & Shipbuilding Co., Ltd.
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Hitoshi Narita
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT