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发明名称
摘要
申请公布号
JPH0552994(U)
申请公布日期
1993.07.13
申请号
JP19910099238U
申请日期
1991.12.02
申请人
发明人
分类号
G08B5/00;G08B5/36;H04B10/08;H04B17/00;(IPC1-7):G08B5/36
主分类号
G08B5/00
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