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发明名称
摘要
申请公布号
JPH0341909(U)
申请公布日期
1991.04.22
申请号
JP19890101815U
申请日期
1989.09.01
申请人
发明人
分类号
H01F17/06;(IPC1-7):H01F17/06
主分类号
H01F17/06
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代理人
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地址
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