NUOVA TAVOLA PITAGORICA A COLORI PER L APPRENDIMENTO IMMEDIATO DI CALCOLO DELLA MOLTIPLICAZIONE,申请号IT19870053097U-传众专利搜索

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发明名称	NUOVA TAVOLA PITAGORICA A COLORI PER L APPRENDIMENTO IMMEDIATO DI CALCOLO DELLA MOLTIPLICAZIONE
摘要
申请公布号	IT8753097(V0)	申请公布日期	1987.03.04
申请号	IT19870053097U	申请日期	1987.03.04
申请人	ROSSI CARLO	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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