Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jakob SuterfiledCriticalJakob Suter
Publication of CH2910ApublicationCriticalpatent/CH2910A/de
Un sistema de puente-tubo inmergido, para la circulación de los ferro-carriles y otras vías de comunicación a través de los estrechos, ríos y extensiones de agua en general.