Check controlled metering device

Details Check controlled metering device Check controlled metering device

1979-07-19

1981-03-24

Cook, Daryl W.

Registers

Record controlled calculators

With printing

235381, G06K 312, G06F 708

Patent

active

042582520

ABSTRACT:
A postage meter is used in conjunction with a check which serves for updating, i.e. increasing the credit register, by a predetermined sum of money. The check is keyed to the particular meter either prior to or after updating the register, and means are provided to invalidate the check after use and to provide the check with data related to the meter.

REFERENCES:
patent: 3716698 (1973-02-01), Simjian
patent: 3743134 (1973-07-01), Constable
patent: 3792446 (1974-02-01), McFiggins
patent: 3870866 (1975-03-01), Halpern
patent: 4007355 (1977-02-01), Moreno
patent: 4020325 (1977-04-01), Pfost

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