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发明名称
HIERARCHICAL STRUCTURE OF A NOTIFICATION SYSTEM INCLUDING RIGHTS BASED ON ROLES
摘要
申请公布号
EP2374115(A1)
申请公布日期
2011.10.12
申请号
EP20090835691
申请日期
2009.12.21
申请人
BLACKBOARD CONNECT INC.
发明人
ROTH, JOSHUA;CHEN, BING
分类号
G07F19/00;G06F21/00;H04L12/18;H04L29/06
主分类号
G07F19/00
代理机构
代理人
主权项
地址
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