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发明名称
DDC DISCRIMINADOR DE CHAMADA A COBRAR
摘要
申请公布号
BR8703155(A)
申请公布日期
1988.12.27
申请号
BR1987PI03155
申请日期
1987.05.28
申请人
TELECOMUNICACOES DE PERNAMBUCO S/A - TELPE
发明人
MASARU OHASHI;CARLOS HUMBERTO LAFAYETT NEVES
分类号
H04M3/42;(IPC1-7):H04M3/42
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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