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发明名称
Un dispositivo mecánico para la escritura manual perforada para su empleo por los invidentes
摘要
申请公布号
ES44691(Y)
申请公布日期
1955.06.01
申请号
ES19910000446U
申请日期
1954.10.28
申请人
CASAÑE FERNÁNDEZ, JULIO
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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