An improved means and apparatus to facilitate the learning and teaching of shorthand, languages, writing and the like,申请号GB19300016058-传众专利搜索

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发明名称	An improved means and apparatus to facilitate the learning and teaching of shorthand, languages, writing and the like
摘要
申请公布号	GB355354(A)	申请公布日期	1931.08.24
申请号	GB19300016058	申请日期	1930.05.24
申请人	FRANK BURT	发明人
分类号	G09B11/00;G09B11/08;G09B19/08	主分类号	G09B11/00
代理机构		代理人
主权项
地址

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