The testing and protection of telephone lines,申请号GB20020028508-传众专利搜索

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发明名称	The testing and protection of telephone lines
摘要
申请公布号	GB0228508(D0)	申请公布日期	2003.01.15
申请号	GB20020028508	申请日期	2002.12.06
申请人	OAKDENE LIMITED	发明人
分类号	H04M3/18;H04M3/30;H04Q1/14	主分类号	H04M3/18
代理机构		代理人
主权项
地址

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