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发明名称
Assistant device for reading book
摘要
申请公布号
KR100957834(B1)
申请公布日期
2010.05.13
申请号
KR20080066245
申请日期
2008.07.08
申请人
发明人
分类号
B42D9/00
主分类号
B42D9/00
代理机构
代理人
主权项
地址
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