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经营范围
发明名称
GEGENSPRECHSYSTEM
摘要
申请公布号
DE60110815(T2)
申请公布日期
2006.02.23
申请号
DE20016010815T
申请日期
2001.09.10
申请人
VITEC GROUP COMMUNICATIONS LTD., CAMBRIDGE
发明人
FARMER, STEVEN;BURNS, DANIEL
分类号
H04M1/725;H04M3/56;H04W8/18;H04W84/16
主分类号
H04M1/725
代理机构
代理人
主权项
地址
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