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经营范围
发明名称
MAGNETIC RECORDING MEDIUM
摘要
申请公布号
JPH01211231(A)
申请公布日期
1989.08.24
申请号
JP19880034912
申请日期
1988.02.17
申请人
SONY CORP
发明人
MUROYAMA MASAKAZU
分类号
G11B5/702;C09D5/23;G11B5/712
主分类号
G11B5/702
代理机构
代理人
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地址
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