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发明名称
摘要
申请公布号
JP2800360(B2)
申请公布日期
1998.09.21
申请号
JP19900101318
申请日期
1990.04.17
申请人
发明人
分类号
H01J29/76;H01F27/42;(IPC1-7):H01F27/42
主分类号
H01J29/76
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