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发明名称
Nuevos clavos y tornillos para fijación de carriles a la s traviesas, su numeración y otros usos
摘要
申请公布号
ES4634(Y)
申请公布日期
1938.02.16
申请号
ES19340000046U
申请日期
1936.04.04
申请人
TORRE-ISUNZA GONZALEZ, RAMÓN;GARCÍA CARRASCO, VALERIANO
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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