Typewriter keyboard

Details Typewriter keyboard Typewriter keyboard

1989-09-22

1990-10-16

Burr, Edgar S.

Typewriting machines

Key-board or key lever-actuating mechanism

Key-board arranged according to character location

400472, B41J 510

Patent

active

049630440

ABSTRACT:
A keyboard layout which has the letters, the numbers 0 to 9, and the punctuation marks disposed within four horizontal rows. The letters are disposed on first and second contiguous rows in alphabetical order from left to right with respect to all other letters on each of said rows. The numbers 0 to 9 are disposed on a third row, and the punctuation marks are disposed on the fourth row.

REFERENCES:
patent: 761179 (1904-05-01), Pilsatneeks
patent: 4358278 (1982-11-01), Goldfarb
patent: 4615629 (1986-10-01), Power
patent: 4753439 (1988-06-01), O'Brian

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