LEARNING AID,申请号JP19800113639-传众专利搜索

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法人/股东/高管

发明名称	LEARNING AID
摘要
申请公布号	JPS5737389(A)	申请公布日期	1982.03.01
申请号	JP19800113639	申请日期	1980.08.18
申请人	OGAWA KAKOU KK;TONBO PENCIL	发明人	ITOU SHINKICHI
分类号	G09B1/00;G09B3/00	主分类号	G09B1/00
代理机构		代理人
主权项
地址

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