Erasing typewriter with automatic/manual selection

Details Erasing typewriter with automatic/manual selection Erasing typewriter with automatic/manual selection

1980-04-18

1983-02-22

Wright, Jr., Ernest T.

Typewriting machines

Means auxiliary to typewriting function

Means for correcting typing errors

400279, 400696, B41J 2916

Patent

active

043746268

ABSTRACT:
An automatic erasing typewriter determines, in response to actuation of an erase key, if automatic erasing is possible. If not, the typewriter terminates the erase cycle with a backspace and conditions the typewriter for manual erase. Actuation of a character key as the next actuated key completes the manual erase. Actuation of a key other than a character key deconditions the manual erase.

REFERENCES:
patent: 3724633 (1973-04-01), Korb et al.
patent: 3780846 (1973-12-01), Kolpek et al.
patent: 4245918 (1981-01-01), Bowles et al.
patent: 4252451 (1981-02-01), Clancy et al.
patent: 4264226 (1981-04-01), Bowles et al.

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