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发明名称
摘要
申请公布号
JPH0420211(U)
申请公布日期
1992.02.20
申请号
JP19900060423U
申请日期
1990.06.07
申请人
发明人
分类号
H01F7/16;(IPC1-7):H01F7/16
主分类号
H01F7/16
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代理人
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地址
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