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发明名称
摘要
申请公布号
JPS50121957(U)
申请公布日期
1975.10.04
申请号
JP19740031258U
申请日期
1974.03.20
申请人
发明人
分类号
H01F5/04;H01F27/28;H01F41/10;(IPC1-7):H01F5/04
主分类号
H01F5/04
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