Système d'hélices d'avion pour hautes altitudes,申请号FRD722857-传众专利搜索

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发明名称	Système d'hélices d'avion pour hautes altitudes
摘要
申请公布号	FR722857(A)	申请公布日期	1932.03.29
申请号	FRD722857	申请日期	1931.09.12
申请人		发明人	BARJOT HENRI-MARIE-RENE
分类号	B64D35/06	主分类号	B64D35/06
代理机构		代理人
主权项
地址

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