ANALYSIS DEVICE OF TEACHING PROCESS,申请号KR19780005999U-传众专利搜索

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发明名称	ANALYSIS DEVICE OF TEACHING PROCESS
摘要
申请公布号	KR790001922(Y1)	申请公布日期	1979.11.19
申请号	KR19780005999U	申请日期	1978.11.27
申请人	BAE BOK RAE	发明人	BAE BOK RAE
分类号	G09B3/00;(IPC1-7):G09B3/00	主分类号	G09B3/00
代理机构		代理人
主权项
地址

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