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发明名称
摘要
申请公布号
JPS4431581(Y1)
申请公布日期
1969.12.26
申请号
JP19670107621U
申请日期
1967.12.21
申请人
发明人
分类号
E04H12/20;H01B17/58;H02G7/00;(IPC1-7):H02G7/00
主分类号
E04H12/20
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代理人
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