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发明名称
METHOD FOR SUPPLYING LECTURE INFORMATION USING VIRTUAL SPACE
摘要
申请公布号
KR20010097205(A)
申请公布日期
2001.11.08
申请号
KR20000021071
申请日期
2000.04.20
申请人
BYUN, HEE CHEOI
发明人
BYUN, HEE CHEOI
分类号
G06F17/00;(IPC1-7):G06F17/00
主分类号
G06F17/00
代理机构
代理人
主权项
地址
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