发明名称 DEVICE FOR PROPELLING SHIPS
摘要 <p>The invention concerns a device for propelling ships comprising at least one surface which freely oscillates within a casing under the action of at least oneshaft. The surface includes a main blade actuated by the shaft and a smaller leading blade connected to the main blade while providing a free space between the two blades.</p>
申请公布号 CA1083432(A) 申请公布日期 1980.08.12
申请号 CA19770280386 申请日期 1977.06.13
申请人 SOCIETE D'ETUDE ET DE GESTION DES BREVETS DE LA ROCHE KERANDR 发明人
分类号 B63H1/30;B63H1/36;B63H11/06 主分类号 B63H1/30
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