ES121795A1
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Improvements in hatch covers.
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GB120087A
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Improvements in the Construction of Reinforced Concrete Vessels and Floating Structures.
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US1252008A
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Construction of tank vessels.
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GB191516834A
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Improvements in the Construction of Tank Vessels.
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GB191213742A
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Improvements in the Construction of Floating Vessels.
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US1147732A
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Method of building longitudinally-framed vessels.
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US1029546A
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Construction of floating vessels.
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CA121467A
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Construction of boats, ships, etc.
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GB190602588A
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Improvements in the Construction of Floating Vessels.
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CA330098A
|
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Hatch cover
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CA344332A
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Floating vessel
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