Tablette sans cadre pour écriture braille,申请号FR19590796143-传众专利搜索

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发明名称	Tablette sans cadre pour écriture braille
摘要
申请公布号	FR1233162(A)	申请公布日期	1960.10.12
申请号	FR19590796143	申请日期	1959.05.30
申请人	CROISADE DES AVEUGLES	发明人
分类号	G09B21/02	主分类号	G09B21/02
代理机构		代理人
主权项
地址

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