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发明名称
ELECTRONIC BLACKBOARD
摘要
申请公布号
JPS6290296(A)
申请公布日期
1987.04.24
申请号
JP19850230183
申请日期
1985.10.16
申请人
SEIKO EPSON CORP
发明人
TSURUISHI YUKI
分类号
H04N1/19;B43L1/04;H04N1/00;H04N1/04
主分类号
H04N1/19
代理机构
代理人
主权项
地址
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