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发明名称
摘要
申请公布号
DK130698(C)
申请公布日期
1975.09.01
申请号
DK19680001228
申请日期
1968.03.21
申请人
INTERNATIONAL BUSINESS MACHINES CO
发明人
AMBRICO L E
分类号
G11B20/10;(IPC1-7):G11B5/06
主分类号
G11B20/10
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