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发明名称
摘要
申请公布号
FR2046840(A1)
申请公布日期
1971.03.12
申请号
FR19700017086
申请日期
1970.05.12
申请人
IBM
发明人
分类号
G11B5/105;G11B5/10;G11B5/127;G11B5/133;G11B5/187;G11B5/60;(IPC1-7):11B7/00
主分类号
G11B5/105
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