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发明名称
摘要
申请公布号
JPS536696(B1)
申请公布日期
1978.03.10
申请号
JP19720039521
申请日期
1972.04.19
申请人
发明人
分类号
H01F7/18;H03K17/64;H03K17/72;H03K17/73;(IPC1-7):H01F7/18
主分类号
H01F7/18
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