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发明名称
摘要
申请公布号
JPH0440511(U)
申请公布日期
1992.04.07
申请号
JP19900082559U
申请日期
1990.08.02
申请人
发明人
分类号
E04B1/86;H01F27/02;(IPC1-7):H01F27/02
主分类号
E04B1/86
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代理人
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