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B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
B63H—MARINE PROPULSION OR STEERING
B63H1/00—Propulsive elements directly acting on water
B63H1/02—Propulsive elements directly acting on water of rotary type
B63H1/04—Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction
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FR755483D1932-12-281933-04-20Procédé de propulsion d'un véhicule aquatique et dispositif de propulsion travaillant suivant ce procédé
ExpiredFR755483A
(fr)