ES231969A1 - UN SISTEMA DE CONSTRUCCIoN MEJORADO POR EL EMPLEO DE ELEMENTOS ESTRUCTURALES PREFABRICADOS DE HORMIGoN Y HORMIGoN ARMADO.
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UN SISTEMA DE CONSTRUCCIoN MEJORADO POR EL EMPLEO DE ELEMENTOS ESTRUCTURALES PREFABRICADOS DE HORMIGoN Y HORMIGoN ARMADO.
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ES0231969A1956-11-161956-11-16UN SISTEMA DE CONSTRUCCIoN MEJORADO POR EL EMPLEO DE ELEMENTOS ESTRUCTURALES PREFABRICADOS DE HORMIGoN Y HORMIGoN ARMADO.
ExpiredES231969A1
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