Perfectionnements aux hélices à pas variable,申请号FRD865228-传众专利搜索

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发明名称	Perfectionnements aux hélices à pas variable
摘要
申请公布号	FR865228(A)	申请公布日期	1941.05.16
申请号	FRD865228	申请日期	1940.01.13
申请人		发明人	BOISMENU MARCEL
分类号	B64C11/30	主分类号	B64C11/30
代理机构		代理人
主权项
地址

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