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Individual
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Individual
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Priority to ES0324191ApriorityCriticalpatent/ES324191A1/es
Publication of ES324191A1publicationCriticalpatent/ES324191A1/es
PERFECCIONAMIENTOS EN APARATOS PARA OBTENER UN NuMERO MáXIMO DE CLAVES INDEPENDIENTES, PARTIENDO DE UN NuMERO MINNICO DE SENALES DE ENTRADA DE CONTROL DE CLAVE
Perfeccionamientos en las maquinas componedoras, transmiso- res telegraficos y entradas de computadores, dotados todos ellos de uno o mas teclados alfanumericos.