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发明名称
ELECTRONIC BLACKBOARD DEVICE
摘要
申请公布号
JPH0585094(A)
申请公布日期
1993.04.06
申请号
JP19910247566
申请日期
1991.09.26
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
FUKUDA IZUMI
分类号
B43L1/04;H04N1/00;H05F3/02
主分类号
B43L1/04
代理机构
代理人
主权项
地址
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