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经营范围
发明名称
MAGNETIC RECORDING MEDIUM
摘要
申请公布号
JPH0386915(A)
申请公布日期
1991.04.11
申请号
JP19890224061
申请日期
1989.08.30
申请人
SONY CORP
发明人
HAYASHI KAZUHIKO;HAYAKAWA MASATOSHI;ASO KOICHI
分类号
G11B5/64;G11B5/66;G11B5/73;G11B5/85
主分类号
G11B5/64
代理机构
代理人
主权项
地址
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