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经营范围
发明名称
Call screening
摘要
申请公布号
GB2332338(A)
申请公布日期
1999.06.16
申请号
GB19980027399
申请日期
1998.12.11
申请人
* NORTHERN TELECOM LIMITED
发明人
MATTHEW R * HOLIDAY II
分类号
H04M3/436;H04M3/51;(IPC1-7):H04M3/38
主分类号
H04M3/436
代理机构
代理人
主权项
地址
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