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发明名称
METHOD TO PROVIDE AND PERFORM A TELEPHONE SERVICE
摘要
申请公布号
EP0928548(A1)
申请公布日期
1999.07.14
申请号
EP19970945138
申请日期
1997.10.02
申请人
TELIGENT AB
发明人
LARSSON, CONNY
分类号
H04M3/42;H04M3/54;H04Q3/545;(IPC1-7):H04Q3/00
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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