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经营范围
发明名称
OPTICAL RECORDING MEDIUM
摘要
申请公布号
JPH04182981(A)
申请公布日期
1992.06.30
申请号
JP19900311154
申请日期
1990.11.16
申请人
OLYMPUS OPTICAL CO LTD
发明人
ICHIKAWA KAORI
分类号
G11B20/12;G11B27/00
主分类号
G11B20/12
代理机构
代理人
主权项
地址
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