Hélice à pas variable,申请号FRD710514-传众专利搜索

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发明名称	Hélice à pas variable
摘要
申请公布号	FR710514(A)	申请公布日期	1931.08.24
申请号	FRD710514	申请日期	1931.01.26
申请人	ECLIPSE AVIATION CORPORATION	发明人
分类号	B64C11/34	主分类号	B64C11/34
代理机构		代理人
主权项
地址

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