Perfectionnements au montage des hélices, et plus particulièrement des hélices à pas variable,申请号FRD775507-传众专利搜索

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发明名称	Perfectionnements au montage des hélices, et plus particulièrement des hélices à pas variable
摘要
申请公布号	FR775507(A)	申请公布日期	1934.12.31
申请号	FRD775507	申请日期	1933.09.27
申请人		发明人	BALLU FRANCOIS
分类号	B64C11/42	主分类号	B64C11/42
代理机构		代理人
主权项
地址

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