OPTICAL MONITOR CIRCUITRY FOR GROUP TEACHING,申请号CS19790003937-传众专利搜索

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发明名称	OPTICAL MONITOR CIRCUITRY FOR GROUP TEACHING
摘要
申请公布号	CS208006(B1)	申请公布日期	1981.08.31
申请号	CS19790003937	申请日期	1979.06.07
申请人	MADEJ,ZBYNEK,CS;CERNY,JAROMIR,CS;MADEJ,FRANTISEK,CS	发明人	MADEJ,ZBYNEK,CS;CERNY,JAROMIR,CS;MADEJ,FRANTISEK,CS
分类号	G09B7/06;(IPC1-7):G09B7/06	主分类号	G09B7/06
代理机构		代理人
主权项
地址

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