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发明名称
摘要
申请公布号
FR2184746(A1)
申请公布日期
1973.12.28
申请号
FR19730017172
申请日期
1973.05.11
申请人
OLIVETTI E CO SPA,IT
发明人
分类号
G11B15/68;(IPC1-7):G11B15/66
主分类号
G11B15/68
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