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发明名称
Test device for data services
摘要
申请公布号
US7508921(B2)
申请公布日期
2009.03.24
申请号
US10564782
申请日期
2004.07.16
申请人
发明人
分类号
H04M1/24;H04M3/08;H04M3/22
主分类号
H04M1/24
代理机构
代理人
主权项
地址
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