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发明名称
DOCUMENT SECURITY SYSTEM AND METHOD BY USING E-MAIL
摘要
申请公布号
KR20060027895(A)
申请公布日期
2006.03.29
申请号
KR20040076768
申请日期
2004.09.24
申请人
HAN, EUI SU
发明人
HAN, EUI SU
分类号
G06Q50/32;G06F21/00
主分类号
G06Q50/32
代理机构
代理人
主权项
地址
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