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Individual
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Priority to ES277963ApriorityCriticalpatent/ES277963A3/es
Publication of ES277963A3publicationCriticalpatent/ES277963A3/es
ES277963A1962-06-041962-06-04Perfeccionamientos en el mecanismo de conmutación por teclado para uso de receptores de radio, televisión y gramolas
ExpiredES277963A3
(es)