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发明名称
PLATE OF MARKS FOR TYPPING
摘要
申请公布号
KR890004681(Y1)
申请公布日期
1989.07.15
申请号
KR19860018098U
申请日期
1986.11.19
申请人
CHOE, SANG-GOL
发明人
CHOE, SANG-GOL
分类号
G09B19/00;(IPC1-7):G09B19/00
主分类号
G09B19/00
代理机构
代理人
主权项
地址
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