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B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
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FR43384D1933-01-301933-01-30Dispositif devant assurer en mer la sécurité absolue des passagers sur tous les navires, dirigeables et avions
ExpiredFR43384E
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