TEACHING DEVICE,申请号SU19752184468-传众专利搜索

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发明名称	TEACHING DEVICE
摘要
申请公布号	SU723646(A1)	申请公布日期	1980.03.25
申请号	SU19752184468	申请日期	1975.10.27
申请人	KB POLT I IM. V.V.KUJBYSHEVA	发明人	ALIMPIEV ARTURIJ V,SU;VELIKANOV VALERIJ S,SU
分类号	G09B7/02;(IPC1-7):G09B7/02	主分类号	G09B7/02
代理机构		代理人
主权项
地址

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