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发明名称
MEJORAS INTRODUCIDAS EN LA S TUERCAS DE SEGURIDAD
摘要
申请公布号
ES186424(A1)
申请公布日期
1949.03.01
申请号
ES19240001864
申请日期
1948.12.28
申请人
SOCIETE "SECURIT'S D. D. L. C."
发明人
分类号
(IPC1-7):F16
主分类号
(IPC1-7):F16
代理机构
代理人
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