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发明名称
ELECTRONIC BLACKBOARD
摘要
申请公布号
JPH115397(A)
申请公布日期
1999.01.12
申请号
JP19970160843
申请日期
1997.06.18
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
EGUCHI KAZUHIRO
分类号
B43L1/04;H04N1/00;(IPC1-7):B43L1/04
主分类号
B43L1/04
代理机构
代理人
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