| 发明名称 |
CONCENTRIC PROPELLERS OF DIFFERENT SIZE AND BLADE NUMBER |
| 摘要 |
A boat propeller drive with double, counter-rotating propellers is distinguished by the after propeller having one more blade than the fore propeller as well as a smaller diameter than the fore propeller. |
| 申请公布号 |
AU8101882(A) |
申请公布日期 |
1982.09.09 |
| 申请号 |
AU19820081018 |
申请日期 |
1982.03.02 |
| 申请人 |
AB VOLVO PENTA |
发明人 |
LENNART BRANDT |
| 分类号 |
B63H5/10;B63H20/00;B63H20/12;B63H20/16;B63H25/42 |
主分类号 |
B63H5/10 |
| 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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