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发明名称
VERFAHREN ZUM BETRIEB EINES DIGITALEN ZEITMULTIPLEX-FERNMELDENETZES
摘要
申请公布号
DE2438199(B2)
申请公布日期
1976.10.21
申请号
DE19742438199
申请日期
1974.08.08
申请人
发明人
分类号
H04J3/00;H04J3/12;H04M9/02;H04Q11/04;(IPC1-7):H04Q11/04
主分类号
H04J3/00
代理机构
代理人
主权项
地址
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