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发明名称
摘要
申请公布号
JPS6344969(Y2)
申请公布日期
1988.11.22
申请号
JP19810064247U
申请日期
1981.04.30
申请人
发明人
分类号
H01F7/16;F16K31/06;H01F7/126;H01F27/28;H01F27/32;(IPC1-7):H01F7/16
主分类号
H01F7/16
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