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发明名称
MEJORAS EN SISTEMA MEMORIZADOR DE SEGURIDAD PARA EMPLEARSE EN FERROCARRILES
摘要
申请公布号
MX160432(A)
申请公布日期
1990.02.26
申请号
MX19770171375
申请日期
1977.11.18
申请人
CARLOS MACIAS FLORES
发明人
CARLOS MACIAS FLORES
分类号
B61L3/24;B61L5/00;(IPC1-7):B61L5/00
主分类号
B61L3/24
代理机构
代理人
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