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发明名称
Processo e sistema de comutação para estabelecer chamada de serviço especial para um destino e processo de modificar facilidades atribuídas à linha
摘要
申请公布号
BR9306124(A)
申请公布日期
1997.08.26
申请号
BR1993PI06124
申请日期
1993.03.17
申请人
AT&T CORPORATION.
发明人
STUART MANDEL GARLAND
分类号
H04M3/38;H04M3/424;H04M3/428;H04M3/436;H04M3/537;H04M11/00;H04M15/00;H04Q11/04;(IPC1-7):H04M11/04;H04M3/00;H04M3/42
主分类号
H04M3/38
代理机构
代理人
主权项
地址
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