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发明名称
ELECTRONIC BLACKBOARD DEVICE
摘要
申请公布号
JPS63139799(A)
申请公布日期
1988.06.11
申请号
JP19860287468
申请日期
1986.12.02
申请人
SEIKO EPSON CORP
发明人
ENDO KENICHI
分类号
B43L1/04
主分类号
B43L1/04
代理机构
代理人
主权项
地址
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