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经营范围
发明名称
MAGNETIC DISK
摘要
申请公布号
JPS6417221(A)
申请公布日期
1989.01.20
申请号
JP19870170951
申请日期
1987.07.10
申请人
HITACHI LTD
发明人
SAITO MAKOTO;KATO YASUHIRO;KAMO YOSHIHISA
分类号
G11B5/82;G11B5/73
主分类号
G11B5/82
代理机构
代理人
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地址
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