Electronic calculator with printer

Details Electronic calculator with printer Electronic calculator with printer

1979-10-24

1982-08-10

Krass, Errol A.

Boots, shoes, and leggings

G06K 1502, G06F 312

Patent

active

043441475

ABSTRACT:
An electronic calculator having a printer detects the key entry by one of arithmetic keys following the numerical key entry and prints one of arithmetic symbols and entered number respectively at the left-hand side and right-hand side of the print sheet.

REFERENCES:
patent: 3787988 (1974-01-01), Nakajima et al.
patent: 3974575 (1976-08-01), Duncan
patent: 4016411 (1977-04-01), Genin
patent: 4044228 (1977-08-01), Kishimoto et al.
patent: 4138734 (1979-02-01), Nakata et al.

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