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发明名称
摘要
申请公布号
JPS5540668(Y2)
申请公布日期
1980.09.22
申请号
JP19770018834U
申请日期
1977.02.17
申请人
发明人
分类号
H01H43/02;G04C23/02;G04C23/14;H01H43/10;(IPC1-7):H01H43/02
主分类号
H01H43/02
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