Amplification device for telephones,申请号GB19860011703-传众专利搜索

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发明名称	Amplification device for telephones
摘要
申请公布号	GB2215163(A)	申请公布日期	1989.09.13
申请号	GB19860011703	申请日期	1986.05.14
申请人	RONALD GEORGE * CONNOR;BEN BRIAN * NORTH	发明人	RONALD GEORGE * CONNOR;BEN BRIAN * NORTH
分类号	H04M1/62;H04R1/02	主分类号	H04M1/62
代理机构		代理人
主权项
地址

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