Electronic display interface for the visually impaired in the nature of a visual screen for producing braille text; Electronic display interface for the visually impaired in the nature of a tactile screen for producing braille text; Electronic display interface for the visually impaired in the nature of a visual screen for producing braille graphical images; Electronic display interface for the visually impaired in the nature of a tactile screen for producing braille graphical images
Electrical and Scientific Apparatus