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发明名称
Arrangement de circuits pour la transmission de signaux par des lignes téléphoniques
摘要
申请公布号
FR1277645(A)
申请公布日期
1961.12.01
申请号
FR19610849553
申请日期
1961.01.12
申请人
TELEFONAKTIEBOLAGET L M ERICSSON
发明人
分类号
H04M7/10;H04Q1/30
主分类号
H04M7/10
代理机构
代理人
主权项
地址
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