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发明名称
摘要
申请公布号
DE2109024(A1)
申请公布日期
1972.03.30
申请号
DE19712109024
申请日期
1971.02.25
申请人
LANNIONNAISE DELECCTRONIQUE SO;CIT ALCATEL
发明人
分类号
H04J3/06;H04J3/16;H04J3/18;H04Q11/08;(IPC1-7):H04Q11/04
主分类号
H04J3/06
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