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BOLLMANN LOUIS
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BOLLMANN LOUIS
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Application filed by BOLLMANN LOUISfiledCriticalBOLLMANN LOUIS
Priority to ES822ApriorityCriticalpatent/ES822A1/es
Publication of ES822A1publicationCriticalpatent/ES822A1/es
Perfeccionamientos introducidos en los aparatos destinados a la realización completa de la explotación de vías férreas por secciones, conocido con el nombre de "Block-sistema".
Un procedimiento que permite el funcionamiento de los manubrios, siempre en un mismo sentido y circularmente por la combinación de dos de ellos y correspondiente juego de clavetas.