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发明名称
摘要
申请公布号
FR2266408(B1)
申请公布日期
1977.10.07
申请号
FR19740010757
申请日期
1974.03.28
申请人
MATERIEL TELEPHONIQUE
发明人
分类号
H04Q3/00;(IPC1-7):H04Q3/54
主分类号
H04Q3/00
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