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发明名称
Instrumento para escribir, combinado con timbre impresor
摘要
申请公布号
ES54915(Y)
申请公布日期
1957.01.01
申请号
ES19150000549U
申请日期
1956.06.16
申请人
FELTS DE LA ROCA, OTTO
发明人
分类号
主分类号
代理机构
代理人
主权项
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