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发明名称
摘要
申请公布号
GB1302799(A)
申请公布日期
1973.01.10
申请号
GB19700057400
申请日期
1970.10.26
申请人
发明人
分类号
G11B15/18;G11B15/22;G11B15/29;G11B15/295;G11B15/48;G11B15/67;G11B23/087;(IPC1-7):G11B15/66;G11B15/28;G11B15/43;G11B23/10
主分类号
G11B15/18
代理机构
代理人
主权项
地址
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