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发明名称
摘要
申请公布号
JPS54172262(U)
申请公布日期
1979.12.05
申请号
JP19780070415U
申请日期
1978.05.26
申请人
发明人
分类号
G08B21/00;H02H3/12;(IPC1-7):H02H3/12
主分类号
G08B21/00
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