DEVICE FOR TEACHING AND TESTING KNOWLEDGE OF STUDENTS,申请号SU19864115008-传众专利搜索

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发明名称	DEVICE FOR TEACHING AND TESTING KNOWLEDGE OF STUDENTS
摘要
申请公布号	SU1381576(A1)	申请公布日期	1988.03.15
申请号	SU19864115008	申请日期	1986.09.04
申请人	ROZHKOV STANISLAV M,SU;IVANITSKIJ VLADIMIR M,SU;FERCHUK EVGENIJ E,SU	发明人	ROZHKOV STANISLAV M,SU;IVANITSKIJ VLADIMIR M,SU;FERCHUK EVGENIJ E,SU
分类号	G09B7/02	主分类号	G09B7/02
代理机构		代理人
主权项
地址

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