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B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
B63H—MARINE PROPULSION OR STEERING
B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
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FR853449D1939-04-251939-04-25Propulsion et direction des navires flottants ou submersibles par l'emploi direct d'eau sous pression
ExpiredFR853449A
(fr)
Corps cylindrique à immersion et à flottabilité alternatives pour le sauvetage des bateaux submersibles ne pouvant plus revenir à la surface de l'eau
Perfectionnements apportés aux dispositifs pour obtenir l'arrêt, à la profondeur voulue, des mines sous-marines pendant leur remontée à la surface de l'eau