Ship's propeller with blades adjustable during service,申请号US19440532665-传众专利搜索

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发明名称	Ship's propeller with blades adjustable during service
摘要
申请公布号	US2517714(A)	申请公布日期	1950.08.08
申请号	US19440532665	申请日期	1944.04.25
申请人	FRITZ ROESCH	发明人	ROESCH FRITZ
分类号	B63H3/04	主分类号	B63H3/04
代理机构		代理人
主权项
地址

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