Communications: electrical – Digital comparator systems
Patent
1970-07-13
1976-05-25
Nusbaum, Mark E.
Communications: electrical
Digital comparator systems
283 6, 283 57, G06F 304, G06F 310
Patent
active
039597733
ABSTRACT:
A device which stores information relative to a plurality of accounts and calculates new balances for individual selected accounts upon receipt of information pertaining to a financial transaction to be charged or credited to the selected account and transmits the new calculated information to the point of the transaction, apparatus at the point of transaction responsive to the transmitted information for printing on preassembled first and second forms a visible display of the amount of the transaction and a temporarily concealed display of the amount of the transaction and the selected account balances before and after the transaction.
REFERENCES:
patent: 528142 (1894-10-01), Brown
patent: 2324662 (1943-07-01), Aaron
patent: 2720833 (1955-10-01), Lindon
patent: 3075791 (1963-01-01), Wolf
patent: 3308439 (1967-03-01), Tink et al.
patent: 3407387 (1968-10-01), Looschen et al.
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