TRAINER FOR MEMORIZATION OF MULTIPLICATION TABLE,申请号SU19914928833-传众专利搜索

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发明名称	TRAINER FOR MEMORIZATION OF MULTIPLICATION TABLE
摘要
申请公布号	RU1804648(C)	申请公布日期	1993.03.23
申请号	SU19914928833	申请日期	1991.04.22
申请人	TUZOVSKAYA VIOLA V,SU	发明人	TUZOVSKAYA VIOLA V,SU
分类号	G09B23/02	主分类号	G09B23/02
代理机构		代理人
主权项
地址

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