Double propeller drive for boats,申请号US19840576150-传众专利搜索

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发明名称	Double propeller drive for boats
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	US4619584(A)	申请公布日期	1986.10.28
申请号	US19840576150	申请日期	1984.02.02
申请人	AB VOLVO PENTA	发明人	BRANDT, LENNART
分类号	B63H5/10;B63H20/00;B63H20/12;B63H20/16;B63H25/42;(IPC1-7):B63H5/10	主分类号	B63H5/10
代理机构		代理人
主权项
地址

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