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发明名称
Message system
摘要
申请公布号
GB9703996(D0)
申请公布日期
1997.04.16
申请号
GB19970003996
申请日期
1997.02.26
申请人
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人
分类号
H04M3/53;H04M3/42;H04M3/48;H04M3/533
主分类号
H04M3/53
代理机构
代理人
主权项
地址
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