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经营范围
发明名称
Telecommunications transmission security arrangement
摘要
申请公布号
EP0359352(B1)
申请公布日期
1999.10.13
申请号
EP19890303154
申请日期
1989.03.30
申请人
MARCONI COMMUNICATIONS LIMITED
发明人
CHOPPING, GEOFFREY;ROWE, JONATHAN WILLIAM
分类号
H04L1/22;H04B1/74;H04J3/08;H04Q11/04;(IPC1-7):H04Q11/04
主分类号
H04L1/22
代理机构
代理人
主权项
地址
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