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发明名称
MAGNETIC RECORDING MEDIUM
摘要
申请公布号
JPH0194518(A)
申请公布日期
1989.04.13
申请号
JP19870250667
申请日期
1987.10.06
申请人
HITACHI LTD
发明人
KOJIMA SHUICHI
分类号
G11B5/66;G11B5/64;G11B5/72;G11B5/725;G11B5/73;G11B5/738
主分类号
G11B5/66
代理机构
代理人
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