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Priority to ES0207686ApriorityCriticalpatent/ES207686A2/es
Publication of ES207686A2publicationCriticalpatent/ES207686A2/es
Mejoras introducidas en el objeto de la patente principal número 197.701 por dispositivo para el accionamiento de puertas caracterizado porque el eje principal o pivote de la puerta está conectado a una cadena cuyos extremos actúan sobre resortes laterales de conveniente potencia a através de unas poleas que en su desplazamiento comprimen uno de ellos en tanto que el opuesto se mantiene en reposo apoyado en un soporte-tope de retención.
ES0207686A1953-02-101953-02-10Un dispositivo para el accionamiento de puertas
ExpiredES207686A2
(es)