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发明名称
摘要
申请公布号
JPS5252031(U)
申请公布日期
1977.04.14
申请号
JP19750137768U
申请日期
1975.10.11
申请人
发明人
分类号
H01H50/46;H01H50/44;H01H67/26;(IPC1-7):H01H50/44
主分类号
H01H50/46
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代理人
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