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发明名称
PORTABLE PRESENTATION SYSTEM
摘要
申请公布号
KR20110118261(A)
申请公布日期
2011.10.31
申请号
KR20100037758
申请日期
2010.04.23
申请人
CHA, SONG CHOL
发明人
CHA, SONG CHOL
分类号
G06F3/01;G06F3/03;G06F3/14;H04B7/04
主分类号
G06F3/01
代理机构
代理人
主权项
地址
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