ELECTRIC SIGNAL AMPLIFIERS.,申请号IE19540000451-传众专利搜索

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发明名称	ELECTRIC SIGNAL AMPLIFIERS.
摘要
申请公布号	IE22119(L)	申请公布日期	1955.03.11
申请号	IE19540000451	申请日期	1954.08.30
申请人	STANDARD TELEPHONES AND CABLES LTD.	发明人
分类号	H04B3/36;(IPC1-7):H04B3/36	主分类号	H04B3/36
代理机构		代理人
主权项
地址

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