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发明名称
MAGNETIC RECORDING MEDIUM
摘要
申请公布号
JPH0397170(A)
申请公布日期
1991.04.23
申请号
JP19890233029
申请日期
1989.09.11
申请人
SONY CORP
发明人
OOKUBO HIROTSUGU;YAMAZAKI HIROSHI;OGAWA KAZUYUKI
分类号
G11B20/12;G11B27/28
主分类号
G11B20/12
代理机构
代理人
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