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发明名称
DISPOSITIF DE SUPPRESSION D'ECHO POUR VOIE DE TRANSMISSION
摘要
申请公布号
FR2333389(A1)
申请公布日期
1977.06.24
申请号
FR19760035354
申请日期
1976.11.24
申请人
WESTERN ELECTRIC CY INC
发明人
分类号
H04B3/20;H04B3/23;H04L5/14;(IPC1-7):H04B3/20;G08C19/00
主分类号
H04B3/20
代理机构
代理人
主权项
地址
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