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发明名称
摘要
申请公布号
DE2902504(C2)
申请公布日期
1981.02.12
申请号
DE19792902504
申请日期
1979.01.23
申请人
SIEMENS AG, 1000 BERLIN UND 8000 MUENCHEN
发明人
MARKWITZ, WERNHARD, DIPL.-ING., 8000 MUENCHEN
分类号
H04J3/06;(IPC1-7):H04L7/04
主分类号
H04J3/06
代理机构
代理人
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地址
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