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Priority to NL6500713ApriorityCriticalpatent/NL6500713A/xx
Priority to BE670671Dprioritypatent/BE670671A/xx
Priority to GB4892065Aprioritypatent/GB1105274A/en
Priority to FR40840Aprioritypatent/FR1455744A/fr
Publication of NL6500713ApublicationCriticalpatent/NL6500713A/xx
B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPINGÂ
B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
B63B39/12—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude for indicating draught or load