Programmable calculator having keys for performing angular measu

Details Programmable calculator having keys for performing angular measu Programmable calculator having keys for performing angular measu

1983-02-15

1984-06-19

Springborn, Harvey E.

Boots, shoes, and leggings

G06F 302, G06F 314, G06F 500

Patent

active

044556071

ABSTRACT:
A programmable calculator having modular read-write and read-only memory units, a central processing unit, a keyboard input unit, and an output display unit, includes keys on the keyboard input unit for performing angular measurement unit conversion.

REFERENCES:
patent: 3760375 (1973-09-01), Irwin et al.
patent: 4015245 (1977-03-01), Mercurio et al.
patent: 4127897 (1978-11-01), Spangler et al.

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