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发明名称
摘要
申请公布号
JPS5419851(B2)
申请公布日期
1979.07.18
申请号
JP19740044544
申请日期
1974.04.22
申请人
发明人
分类号
H01F1/147;C22C1/02;C22C1/10;C22C19/03;C22F1/10;H01F1/04
主分类号
H01F1/147
代理机构
代理人
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