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发明名称
Virtueller privater Leitungsdienst
摘要
申请公布号
DE69027905(T2)
申请公布日期
1997.02.27
申请号
DE1990627905T
申请日期
1990.10.19
申请人
AT&T CORP., NEW YORK, N.Y., US
发明人
KIRSCH, LARRY WILLIAM, BOLINGBROOK, ILLINOIS 60439, US;REDBERG, DAVID ALLEN, RED BANK, NEW JERSEY 07701, US
分类号
H04M3/42;H04Q3/00;H04Q3/58;(IPC1-7):H04Q3/00;H04M3/44
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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