ELECTRONIC BLACKBOARD DEVICE HAVING SELF-DIAGNOSTIC FUNCTION,申请号JP19870090640-传众专利搜索

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发明名称	ELECTRONIC BLACKBOARD DEVICE HAVING SELF-DIAGNOSTIC FUNCTION
摘要
申请公布号	JPS63256500(A)	申请公布日期	1988.10.24
申请号	JP19870090640	申请日期	1987.04.15
申请人	OKI ELECTRIC IND CO LTD	发明人	KANO HIROYUKI
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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