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发明名称
摘要
申请公布号
JPS5220323(B2)
申请公布日期
1977.06.02
申请号
JP19740016914
申请日期
1974.02.12
申请人
发明人
分类号
G11B17/30;G11B23/00;G11B25/04
主分类号
G11B17/30
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代理人
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地址
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