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发明名称
摘要
申请公布号
JPS53120723(U)
申请公布日期
1978.09.26
申请号
JP19770025216U
申请日期
1977.03.04
申请人
发明人
分类号
H01F30/00;(IPC1-7):H01F31/00
主分类号
H01F30/00
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代理人
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地址
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