Keyboard structure

Typewriting machines – Key-board or key lever-actuating mechanism – For stenographic typewriter

Reexamination Certificate

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Details

C400S091000, C400S475000

Reexamination Certificate

active

06948868

ABSTRACT:
A word transcription keyboard utilizing at least one keypad which is available for access by a finger of the user. A second keypad accessible to the finger of the user is extended and terminated in a press pad for allowing contact of the palm region of the hand simultaneously with the pressing of the at least one finger accessible keypad.

REFERENCES:
patent: 323286 (1885-07-01), Anderson
patent: 335171 (1886-02-01), Anderson
patent: 581570 (1897-04-01), Anderson
patent: 1336151 (1920-04-01), O'Connor
patent: 2189023 (1940-02-01), Ayres
patent: 3332527 (1967-07-01), Place
patent: 4201489 (1980-05-01), Zapp
patent: 4655621 (1987-04-01), Holden
patent: 4765764 (1988-08-01), Lefler
patent: 4804279 (1989-02-01), Berkelams et al.
patent: 5017030 (1991-05-01), Crews
patent: 5486058 (1996-01-01), Allen
patent: 6084576 (2000-07-01), Leu et al.

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