Keyboard for bar matrix code

Details Keyboard for bar matrix code Keyboard for bar matrix code

1975-06-09

1976-09-14

Robinson, Thomas A.

Telegraphy

Systems

Printing

178 17C, 197 99, H04L 2102, B41J 754

Patent

active

039808238

ABSTRACT:
A keyboard for generating alpha-numeric character data for an output device such as a printer or display or transmission line or memory or the like. A keyboard with five sets of keys for operation with one hand to produce an eight bar matrix character code, with the sets positioned in a row and with the central sets selectively providing upper, lower and combination of upper and lower bars of the matrix.

REFERENCES:
patent: 39296 (1863-07-01), Livermore
patent: 1542455 (1925-06-01), Howard
patent: 3588875 (1971-06-01), Gabor
patent: 3633724 (1972-01-01), Samuel

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