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发明名称
摘要
申请公布号
JPS5223037(Y2)
申请公布日期
1977.05.26
申请号
JP19710019254U
申请日期
1971.03.17
申请人
发明人
分类号
G07G1/00;E05B65/00;(IPC1-7):G06C27/02
主分类号
G07G1/00
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