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发明名称
KEY OPERATION SYSTEM IN ELECTRONIC BLACKBOARD DEVICE
摘要
申请公布号
JPS63149194(A)
申请公布日期
1988.06.21
申请号
JP19860296536
申请日期
1986.12.15
申请人
OKI ELECTRIC IND CO LTD
发明人
OKABE TOSHIO
分类号
B43L1/04;H04N1/00
主分类号
B43L1/04
代理机构
代理人
主权项
地址
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