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发明名称
Phonecard system
摘要
申请公布号
GB0419412(D0)
申请公布日期
2004.10.06
申请号
GB20040019412
申请日期
2004.09.01
申请人
CHEERS INTERNATIONAL TELECOM LTD
发明人
分类号
G06Q20/00;G07F7/02;G07F7/08;G07F15/04;H04M15/00;H04M15/06;H04M15/38;H04M17/00
主分类号
G06Q20/00
代理机构
代理人
主权项
地址
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