Systèmes de communications électriques,申请号FRD887180-传众专利搜索

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发明名称	Systèmes de communications électriques
摘要
申请公布号	FR887180(A)	申请公布日期	1943.11.05
申请号	FRD887180	申请日期	1941.12.11
申请人	LE MATERIEL TELEPHONIQUE	发明人
分类号	H04B3/38	主分类号	H04B3/38
代理机构		代理人
主权项
地址

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