METHODS AND SYSTEMS FOR PRESENTING AND RECORDING CLASS SESSIONS IN A VIRTUAL CLASSROOM,申请号EP20040744502-传众专利搜索

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发明名称	METHODS AND SYSTEMS FOR PRESENTING AND RECORDING CLASS SESSIONS IN A VIRTUAL CLASSROOM
摘要
申请公布号	EP1646993(A1)	申请公布日期	2006.04.19
申请号	EP20040744502	申请日期	2004.07.06
申请人	KONINKLIJKE PHILIPS ELECTRONICS N.V.	发明人	JING, SHENG;PENG, YANG;HE, DAHUA
分类号	G09B5/06;G09B5/14;G09B7/00;(IPC1-7):G09B5/06	主分类号	G09B5/06
代理机构		代理人
主权项
地址

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