READING APPARATUS FOR THE BLIND,申请号CAD678251-传众专利搜索

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发明名称	READING APPARATUS FOR THE BLIND
摘要
申请公布号	CA678251(A)	申请公布日期	1964.01.21
申请号	CAD678251	申请日期
申请人	ALF M. BERGGREEN	发明人	ALF M. BERGGREEN
分类号		主分类号
代理机构		代理人
主权项
地址

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