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PERWOLF FELIX
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PERWOLF FELIX
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Priority to ES0161015ApriorityCriticalpatent/ES161015A2/es
Publication of ES161015A2publicationCriticalpatent/ES161015A2/es
Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges
(AREA)
Abstract
Sistema de fichero con dispositivo selector de fichas empleando orificios y ranuras hechos en las fichas y varillas selectoras caracterizado porque se disponen grupos de elementos designadores (grupos de selección grupos de control) simétricamente con respecto a una línea de simetría estando limitadas por todas partes en la forma ya conocida las ranuras que cooperan con los orificios.
ES0161015A1943-04-071943-04-07Mejoras introducidas con el objeto de la patente
ExpiredES161015A2
(es)