Programmable calculator

Details Programmable calculator Programmable calculator

1981-02-19

1985-11-19

Smith, Jerry

Boots, shoes, and leggings

364706, G06F 3023, G06F 906, G06F 1502

Patent

active

045546410

ABSTRACT:
A programmable calculator is disclosed which includes a display panel for displaying numerical or alphabetical data, and a keyboard for introducing desired numerical or alphabetical data into a space assigned for a variable. The calculator is further adapted to selectively erase the previous contents on the display panel and display only the introduced numerical or alphabetic data upon introduction of the numerical or alphabetic data or to inhibit erasure of the previous contents on the display panel and display the introduced numerical or alphabetic data together with the previous contents upon introduction of the numerical or alphabetic data.

REFERENCES:
patent: 3976975 (1976-08-01), Cochran
patent: 3979057 (1976-09-01), Katz et al.
patent: 3979058 (1976-09-01), Katz et al.
patent: 4075679 (1978-02-01), Christopher et al.
patent: 4156918 (1979-05-01), Olander, Jr. et al.

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