Credit card verifier

Details Credit card verifier Credit card verifier

1976-01-19

1977-05-10

Cook, Daryl W.

Registers

Calculators

Input-output calculator to indicator, printer, etc.

179 2CA, 340149A, G06K 500, H04M 1100, H03Q 300

Patent

active

040230147

ABSTRACT:
A low cost credit card verifier for use in conjunction with a time-shared central processing unit (CPU) or computer in a credit card verification system in which there are a plurality of manually controlled signal generators for transmitting signals representing an account to be verified to a central processor and provision for receiving from the central processor a signal representative of the status of the account and for indicating the status of the account.

REFERENCES:
patent: 3274345 (1966-09-01), Ham, Jr. et al.
patent: 3571799 (1971-03-01), Coker, Jr. et al.
patent: 3637990 (1972-01-01), Bayha et al.

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