Single element typewriter with error correction feature

Details Single element typewriter with error correction feature Single element typewriter with error correction feature

1977-11-25

1980-05-20

Coughenour, Clyde I.

Typewriting machines

Means auxiliary to typewriting function

Means for correcting typing errors

B41J 2926

Patent

active

042036810

ABSTRACT:
A conventional single element IBM correcting SELECTRIC typewriter having an error correction system is modified by adding to the element a universal obliterating type font and providing an error correcting key function which is independent of the other keys.
In the SELECTRIC typewriter the error correcting key is operatively connected with the backspace key so that activation of the error correcting key simultaneously activates the backspace key.

REFERENCES:
patent: 1905118 (1933-04-01), Nadell
patent: 3780846 (1973-12-01), Kolpek et al.
patent: 3799316 (1974-03-01), Davidge et al.
patent: 3882990 (1975-05-01), Genesio
patent: 3905465 (1975-09-01), Frechette et al.
patent: 3927747 (1975-12-01), Wolowitz
patent: 3927749 (1975-12-01), Wolowitz
patent: 3987885 (1976-10-01), Diamond
patent: 3997047 (1976-12-01), Wolowitz
patent: 4108557 (1978-08-01), Skrzipek

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