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GB1245993A
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Ship's derrick for container handling
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US3435960A
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Ship's derrick for container handling
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GB1039178A
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Improvements in derricks for ships
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GB993724A
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Mast for supporting derricks
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GB920996A
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Slewing devices employing two topping lifts
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DE1168279B
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Device on hulls for the purpose of using the pitching and rolling movements to propel the ship and for the purpose of damping these movements
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GB914997A
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Device associated with the hull of a ship for utilizing pitching and rolling movements to propel the ship and dampen such movements
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GB893665A
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Improved ship's derrick assembly
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ES236692A1
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A mast or tree device for ships (Machine-translation by Google Translate, not legally binding)
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GB858944A
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Mast structure for ship's derrick
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ES226654A1
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A provision of load feet for boats. (Machine-translation by Google Translate, not legally binding)
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GB822610A
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Derrick
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ES210765A3
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A cabria mast for ships (Machine-translation by Google Translate, not legally binding)
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GB718337A
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Gangway-ladder
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GB625746A
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Mast, derrick post or the like member for ships
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GB617341A
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Derrick for vessels
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GB608424A
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Improvements in or relating to ladders
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CA674659A
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Cargo crane boom arrangement
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