发明名称 |
IMPROVEMENTS IN OR RELATING TO AN IMPROVED DEVICE FOR PROPELLING SHIPS |
摘要 |
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 one shaft. 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. |
申请公布号 |
ZA7703615(B) |
申请公布日期 |
1978.05.30 |
申请号 |
ZA19770003615 |
申请日期 |
1977.06.16 |
申请人 |
SEG SOC ETUDE GESTION BREVETS |
发明人 |
KERANDRAON O |
分类号 |
B63H1/30;B63H1/36;B63H11/00;B63H11/06 |
主分类号 |
B63H1/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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