PERFECCIONAMIENTOS EN LOS TECLADOS PARA INTRODUCIR INFORMA- CION GRAFICA EN DISPOSITIVOS DE PROCESO DE INFORMACION

摘要

A keyboard has keys for L-shaped 22', T-shaped 24' and cruciform intersections 26' for graphic representations of frames and boxes. The disposition of each key in the array of keys corresponds to the normal disposition of the intersection associated with such key in the frames or boxes. The numerals or graphics can be accessed by a shift key 32.