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发明名称
CHECK DISC
摘要
申请公布号
CA2018168(A1)
申请公布日期
1990.12.05
申请号
CA19902018168
申请日期
1990.06.04
申请人
SONY CORPORATION
发明人
ISHIMURA, NORIYUKI;YOKOYAMA, KATSUJI
分类号
G11B20/18
主分类号
G11B20/18
代理机构
代理人
主权项
地址
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