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发明名称
BLOQUEADOR DE CHAMADAS INTERURBANAS
摘要
申请公布号
BR8203438(A)
申请公布日期
1984.01.10
申请号
BR19820003438
申请日期
1982.06.04
申请人
TELEREDE TELECOMUNICACOES INDUSTRIA E COMERCIO LTDA.
发明人
ROBERTO DE JESUS FERREIRA
分类号
H04M1/66;(IPC1-7):H04M1/66
主分类号
H04M1/66
代理机构
代理人
主权项
地址
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