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发明名称
ONLINE EDUCATIONAL MANAGEMENT SYSTEM
摘要
申请公布号
CA2420810(A1)
申请公布日期
2004.08.21
申请号
CA20032420810
申请日期
2003.02.21
申请人
CAROTENUTO, ENZO V.
发明人
CAROTENUTO, ENZO V.
分类号
G09B5/00;G09B7/00;(IPC1-7):H04L12/16;G06F17/00
主分类号
G09B5/00
代理机构
代理人
主权项
地址
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