Perfectionnements aux télécommunications,申请号FRD938161-传众专利搜索

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发明名称	Perfectionnements aux télécommunications
摘要
申请公布号	FR938161(A)	申请公布日期	1948.09.07
申请号	FRD938161	申请日期	1946.02.01
申请人	INTERNATIONAL STANDARD ELECTRIC CORPORATION	发明人	DEAKIN GERALD
分类号	H04Q3/42	主分类号	H04Q3/42
代理机构		代理人
主权项
地址

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