Phonics teaching device,申请号US19610155745-传众专利搜索

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发明名称	Phonics teaching device
摘要
申请公布号	US3199227(A)	申请公布日期	1965.08.10
申请号	US19610155745	申请日期	1961.11.29
申请人	KING GEORGE J	发明人	KING GEORGE J.
分类号	G09B17/00	主分类号	G09B17/00
代理机构		代理人
主权项
地址

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