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发明名称
Réduction de la diaphonie dans des systèmes de communication
摘要
申请公布号
FR1080909(A)
申请公布日期
1954.12.14
申请号
FRD1080909
申请日期
1953.06.12
申请人
TELEFONAKTIEBOLAGET L M ERICSSON
发明人
分类号
H03K17/74;H04J3/10
主分类号
H03K17/74
代理机构
代理人
主权项
地址
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