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发明名称
THE METHOD OF EDUCATION SERVICE USING BIDIRECTIONAL SMS FROM CELLULAR PHONE
摘要
申请公布号
KR20050111472(A)
申请公布日期
2005.11.25
申请号
KR20040036612
申请日期
2004.05.22
申请人
LEE, JANG CHOON
发明人
LEE, JANG CHOON
分类号
(IPC1-7):G06F17/60
主分类号
(IPC1-7):G06F17/60
代理机构
代理人
主权项
地址
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