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发明名称
摘要
申请公布号
JP3304798(B2)
申请公布日期
2002.07.22
申请号
JP19970013623
申请日期
1997.01.28
申请人
发明人
分类号
C04B41/84;H01F27/02;H01F41/02;H01F41/04;H01G4/12;(IPC1-7):H01G4/12
主分类号
C04B41/84
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代理人
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