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发明名称
摘要
申请公布号
CS159745(B2)
申请公布日期
1975.01.31
申请号
CS19680003596
申请日期
1968.05.16
申请人
发明人
分类号
G11B15/58;(IPC1-7):G11B15/38
主分类号
G11B15/58
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代理人
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