Perfectionnements à la navigation de nuit ou par temps de brume,申请号FRD989205-传众专利搜索

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发明名称	Perfectionnements à la navigation de nuit ou par temps de brume
摘要
申请公布号	FR989205(A)	申请公布日期	1951.09.06
申请号	FRD989205	申请日期	1944.02.15
申请人	SOCIETE FRANCAISE RADIO-ELECTRIQUE	发明人
分类号	E04C3/44;E21D11/08;G01S1/02;G01S1/72;G01S7/282;G01S13/75	主分类号	E04C3/44
代理机构		代理人
主权项
地址

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