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发明名称
DIGITAL ADDED MAIN LINE SYSTEM
摘要
申请公布号
EP0484330(A4)
申请公布日期
1992.07.29
申请号
EP19900905286
申请日期
1990.07.24
申请人
RAYCHEM CORPORATION
发明人
BLIVEN, DAVID, C.
分类号
H04J3/04;H04J3/18;H04J99/00;H04M11/06;H04Q3/60;H04Q11/04;(IPC1-7):H04J3/04;H04J15/00
主分类号
H04J3/04
代理机构
代理人
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地址
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