Improvements in or relating to teaching machines,申请号GB19650037312-传众专利搜索

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发明名称	Improvements in or relating to teaching machines
摘要
申请公布号	GB1125445(A)	申请公布日期	1968.08.28
申请号	GB19650037312	申请日期	1965.09.01
申请人	EDEX CORPORATION	发明人	NISBET THOMAS RONALD
分类号	G09B7/073	主分类号	G09B7/073
代理机构		代理人
主权项
地址

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