ATTREZZATURA PER INTERROGAZIONE DI DATTICA,申请号IT19770048237-传众专利搜索

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发明名称	ATTREZZATURA PER INTERROGAZIONE DI DATTICA
摘要
申请公布号	IT1083491(B)	申请公布日期	1985.05.21
申请号	IT19770048237	申请日期	1977.02.28
申请人	TUVAL MIRON	发明人
分类号	G09B;(IPC1-7):G09B/	主分类号	G09B
代理机构		代理人
主权项
地址

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