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发明名称
PERSONAL EMERGENCY ALARM SYSTEM
摘要
申请公布号
GB9123223(D0)
申请公布日期
1991.12.18
申请号
GB19910023223
申请日期
1991.11.01
申请人
SPENCER, GEOFFREY H
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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