ELECTRONIC BLACKBOARD SYSTEM,申请号JP19840171709-传众专利搜索

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发明名称	ELECTRONIC BLACKBOARD SYSTEM
摘要
申请公布号	JPS6149899(A)	申请公布日期	1986.03.11
申请号	JP19840171709	申请日期	1984.08.17
申请人	SHARP CORP	发明人	YAMASATO HISAO
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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