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发明名称
摘要
申请公布号
FR2119327(A5)
申请公布日期
1972.08.04
申请号
FR19710039295
申请日期
1971.10.26
申请人
IBM
发明人
分类号
G11B5/60;(IPC1-7):G11B25/00;G11B5/00
主分类号
G11B5/60
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代理人
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