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发明名称
Communication system
摘要
申请公布号
GB0208222(D0)
申请公布日期
2002.05.22
申请号
GB20020008222
申请日期
2002.04.10
申请人
DEAF ALERTER PLC
发明人
分类号
G08B25/08;H04W4/22
主分类号
G08B25/08
代理机构
代理人
主权项
地址
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