Keyboard for a miniature calculator

Details Keyboard for a miniature calculator Keyboard for a miniature calculator

1979-03-15

1981-09-29

Hix, L. T.

Registers

Keyboards

With total transfer to keyboard or the like

G06C 702

Patent

active

042925100

ABSTRACT:
A calculator keyboard includes a face plate and a plurality of keys supported in a predetermined location with respect to the face plate. In the face plate there are provided narrow recesses in alignment with respective keys. Each recess has a width dimension sufficient for providing access to the associated key by a fingernail of the user.

REFERENCES:
patent: 2117398 (1938-05-01), Brown, Jr.
patent: 3517637 (1970-06-01), Kaiser
patent: 3860771 (1975-01-01), Lynn et al.
patent: 4120039 (1978-10-01), Fischer
"Optical Keyboard" by Sharp and Owen, IBM Tech. Disc. Bulletin, vol. 5, No. 10, Mar. 1963, p. 127.

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