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发明名称
SYSTEMES D'INTERCOMMUNICATION A HAUT-PARLEUR
摘要
申请公布号
BE877077(A4)
申请公布日期
1979.12.19
申请号
BE19792057881
申请日期
1979.06.19
申请人
INTERNATIONAL STANDARD ELECTRIC CORP.
发明人
M. SLAWIK;H. WIEDMANN
分类号
H04M9/10;(IPC1-7):H04B/
主分类号
H04M9/10
代理机构
代理人
主权项
地址
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