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经营范围
发明名称
MANUFACTURE OF MAGNETIC RECORDING MEDIUM
摘要
申请公布号
JPH03228221(A)
申请公布日期
1991.10.09
申请号
JP19900020473
申请日期
1990.02.01
申请人
HITACHI LTD
发明人
ITO YASUSHI;KATO YOSHIKI
分类号
G11B5/84
主分类号
G11B5/84
代理机构
代理人
主权项
地址
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