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发明名称
摘要
申请公布号
JPS6445356(U)
申请公布日期
1989.03.20
申请号
JP19870139502U
申请日期
1987.09.11
申请人
发明人
分类号
G11B21/02;G11B21/16;G11B25/04;G11B33/14;(IPC1-7):G11B21/02
主分类号
G11B21/02
代理机构
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