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发明名称
摘要
申请公布号
JPS4971775(U)
申请公布日期
1974.06.21
申请号
JP19720115360U
申请日期
1972.10.04
申请人
发明人
分类号
H01H43/04;G04B1/22;G04C23/08;G04F3/02;(IPC1-7):H01H43/04
主分类号
H01H43/04
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