Typewriting machines – Key-board or key lever-actuating mechanism – Key-board arranged according to character location
Patent
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
Burr Edgar S.
Yan Ren
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