Feathering reversible propeller,申请号US19460684736-传众专利搜索

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发明名称	Feathering reversible propeller
摘要
申请公布号	US2532371(A)	申请公布日期	1950.12.05
申请号	US19460684736	申请日期	1946.07.19
申请人	PETERSEN WERNER H	发明人	PETERSEN WERNER H.
分类号	B63H1/24	主分类号	B63H1/24
代理机构		代理人
主权项
地址

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