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发明名称
MAGNETIC RECORDING MEDIUM
摘要
申请公布号
JPH02201731(A)
申请公布日期
1990.08.09
申请号
JP19890021181
申请日期
1989.01.31
申请人
SONY CORP
发明人
HAGA SHUICHI;IMAI YASUYUKI;MIHASHI HIROYUKI
分类号
G11B5/72;G11B5/64;G11B5/73;G11B5/738;G11B5/82
主分类号
G11B5/72
代理机构
代理人
主权项
地址
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