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发明名称
ELECTRONIC BOARD SYSTEM AND COORDINATES-INPUTTING PEN
摘要
申请公布号
EP1208529(A1)
申请公布日期
2002.05.29
申请号
EP20000950010
申请日期
2000.08.04
申请人
HITACHI SOFTWARE ENGINEERING CO., LTD.
发明人
USUDA, YUTAKA;SHINKAI, Y.;TAKEUCHI, I.;TSUKAMOTO, YUJI;NAMIKI, JUN
分类号
G06F3/041;G06F3/033;G06F3/038;G06F3/042;(IPC1-7):G06K11/08;G06K11/18;G06K11/20
主分类号
G06F3/041
代理机构
代理人
主权项
地址
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