A phone bell control system,申请号KR20010052173-传众专利搜索

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发明名称	A phone bell control system
摘要
申请公布号	KR100475453(B1)	申请公布日期	2005.03.10
申请号	KR20010052173	申请日期	2001.08.28
申请人		发明人
分类号	H04W4/16;(IPC1-7):H04Q7/24	主分类号	H04W4/16
代理机构		代理人
主权项
地址

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