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发明名称
摘要
申请公布号
JPS57161180(U)
申请公布日期
1982.10.09
申请号
JP19810048540U
申请日期
1981.04.06
申请人
发明人
分类号
G11B3/12;G11B9/06;G11B11/00;G11B21/20;(IPC1-7):G11B21/20
主分类号
G11B3/12
代理机构
代理人
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