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发明名称
摘要
申请公布号
JPH0215717(U)
申请公布日期
1990.01.31
申请号
JP19880094316U
申请日期
1988.07.14
申请人
发明人
分类号
H01F41/12;(IPC1-7):H01F41/12
主分类号
H01F41/12
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