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发明名称
摘要
申请公布号
FR2090199(A1)
申请公布日期
1972.01.14
申请号
FR19710014072
申请日期
1971.04.21
申请人
AMPEX CORPORATION
发明人
分类号
G11B5/64;H01F1/06;(IPC1-7):C01G49/00;G11B5/00
主分类号
G11B5/64
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