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发明名称
ANRUFVERKEHRSSTEUERUNG.
摘要
申请公布号
DE68907967(D1)
申请公布日期
1993.09.09
申请号
DE19896007967
申请日期
1989.03.21
申请人
BRITISH TELECOMMUNICATIONS P.L.C., LONDON, GB
发明人
TURNER, PETER MICHAEL DRAYER, COLCHESTER ESSEX CO4 3UU, GB
分类号
H04M3/36;H04Q3/66;(IPC1-7):H04M3/36
主分类号
H04M3/36
代理机构
代理人
主权项
地址
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