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发明名称
Method for automatically initiating a calling card telephone call
摘要
申请公布号
EP0836314(A3)
申请公布日期
1999.12.29
申请号
EP19970116174
申请日期
1997.09.17
申请人
AT&T CORP.
发明人
KOVACS, FRANK, JR.
分类号
H04M1/27;H04M1/2745;H04M1/275;H04M15/00;(IPC1-7):H04M15/00;H04M1/66
主分类号
H04M1/27
代理机构
代理人
主权项
地址
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