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发明名称
THE MASK OF PICTURE MAGNIFIER
摘要
申请公布号
KR910009040(Y1)
申请公布日期
1991.11.21
申请号
KR19880021670U
申请日期
1988.12.27
申请人
OH MYUNG-GWHANG
发明人
OH MYUNG-GWHANG
分类号
G03B29/00;(IPC1-7):G03B29/00
主分类号
G03B29/00
代理机构
代理人
主权项
地址
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