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发明名称
CAJA ADICIONAL DE CONTADORES DE LLAMADA TELEFONICA
摘要
申请公布号
ES250252(Y)
申请公布日期
1981.06.16
申请号
ES19520002502U
申请日期
1980.04.24
申请人
发明人
分类号
H04M15/00;(IPC1-7):04M15/00
主分类号
H04M15/00
代理机构
代理人
主权项
地址
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