Variable color display typewriter

G - Physics – 06 – F

Patent

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Details

375/13, 354/236.

G06F 11/34 (2006.01) B41J 3/46 (2006.01) G09F 9/33 (2006.01)

Patent

CA 1251574

VARIABLE COLOR DISPLAY TYPEWRITER ABSTRACT OF THE DISCLOSURE A typewriter with variable color display visually presents typed text in a color variable in accordance with the typing speed and accuracy.

557546

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