Typewriting machines – Key-board or key lever-actuating mechanism
Reexamination Certificate
2005-02-15
2005-02-15
Nolan, Jr., Charles H. (Department: 2854)
Typewriting machines
Key-board or key lever-actuating mechanism
C400S489000, C400S100000
Reexamination Certificate
active
06854906
ABSTRACT:
An ergonomic keyboard having a Dvorak key layout. The keys are arranged in a V or U shape. The keyboard is tilted downward away from the user. The keyboard has a wrist rest, and a switch to change the key layout to QWERTY.
REFERENCES:
patent: 5166669 (1992-11-01), Romberg
patent: 5426449 (1995-06-01), Danziger
patent: 5936555 (1999-08-01), Zagnoev
patent: 6005496 (1999-12-01), Hargreaves
patent: 6467979 (2002-10-01), Camacho
Technical specification of 2001 DQE keyboard from the Dvorty Boards web site.
Technical specification of the Classic Contoured keyboard from the Kinesis Corporation web site.
Technical specification of the Touch Stream ST keyboard from the Finger Works web site.
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