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发明名称
ELECTRONIC BLACKBOARD
摘要
申请公布号
JPS63237997(A)
申请公布日期
1988.10.04
申请号
JP19870071650
申请日期
1987.03.27
申请人
OKI ELECTRIC IND CO LTD
发明人
KUROSAKI TOMOYUKI
分类号
B43L1/04;H04N1/00;H04N1/10;H04N1/107;H04N1/387
主分类号
B43L1/04
代理机构
代理人
主权项
地址
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