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发明名称
Remote learning system
摘要
申请公布号
IL125476(D0)
申请公布日期
1999.03.12
申请号
IL19970125476
申请日期
1997.01.21
申请人
GUY FREDERICK R.
发明人
分类号
G09B3/00;G09B5/06;G09B5/14;G09B7/02;H04N7/14;H04N7/15;H04N7/173;(IPC1-7):G09B
主分类号
G09B3/00
代理机构
代理人
主权项
地址
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