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发明名称
MEJORAS EN LOS DISPOSITIVOS AMPLIFICADORES DE RECEPCION PARA APARATOS TELEFONICOS
摘要
申请公布号
ES488163(D0)
申请公布日期
1980.11.01
申请号
ES19630004881
申请日期
1980.01.31
申请人
STANDARD ELECTRICA, S.A.
发明人
分类号
H04M1/60;(IPC1-7):H04M1/60
主分类号
H04M1/60
代理机构
代理人
主权项
地址
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