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发明名称
Method for checking the permissibility of call numbers of telephone calls coming from a communication system
摘要
申请公布号
EP0810763(A3)
申请公布日期
2000.05.10
申请号
EP19970107806
申请日期
1997.05.13
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
SPAHL, SIEGFRIED, DIPL.-ING.;RAMBERGER, FRIEDRICH, ING.;MAYER, ADOLF, DIPL.-ING.
分类号
H04M3/38;H04M3/42;H04Q3/42;(IPC1-7):H04M3/42
主分类号
H04M3/38
代理机构
代理人
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