Aparato para la enseñanza de la escritura a máquina.,申请号ES19110000039U-传众专利搜索

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发明名称	Aparato para la enseñanza de la escritura a máquina.
摘要
申请公布号	ES3911(Y)	申请公布日期	1936.02.16
申请号	ES19110000039U	申请日期	1935.07.03
申请人	MARTÍNEZ SÁNCHEZ, JUAN	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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