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发明名称
摘要
申请公布号
JPS57175290(U)
申请公布日期
1982.11.05
申请号
JP19810059571U
申请日期
1981.04.23
申请人
发明人
分类号
G08B21/00;G08B21/16;G08B23/00;(IPC1-7):G08B21/00
主分类号
G08B21/00
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代理人
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