Change pitch propeller,申请号US19350000657-传众专利搜索

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发明名称	Change pitch propeller
摘要
申请公布号	US2028463(A)	申请公布日期	1936.01.21
申请号	US19350000657	申请日期	1935.01.07
申请人	EDWIN T. HODGE	发明人	MCDOUGALL GEORGE F.
分类号	B64C11/36	主分类号	B64C11/36
代理机构		代理人
主权项
地址

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