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发明名称
MULTIMEDIA-ANRUFZENTRALE
摘要
申请公布号
DE69730228(T2)
申请公布日期
2005.08.04
申请号
DE1997630228T
申请日期
1997.10.09
申请人
BRITISH TELECOMMUNICATIONS P.L.C., LONDON
发明人
POTTER, JOHN MORGAN MELBOURNE;LANG, JOHN
分类号
H04M3/42;H04L12/64;H04L29/06;H04M3/00;H04M3/51;H04M7/12;(IPC1-7):H04M3/50
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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