Dual-function information-carrying sheet device

Details Dual-function information-carrying sheet device Dual-function information-carrying sheet device

1989-03-20

1990-02-27

Pitts, Harold I.

Registers

Records

235467, 235492, 235494, 283 77, G06K 1907

Patent

active

049048538

ABSTRACT:
A dual-function information carrying sheet device comprising a digital data storage medium for storing digital data, electrical contacts and an interface through which data is to be stored into or fetched from the digital data storage medium. A visual information record medium on which visual information is associated with the data stored or to be stored in the digital data storage medium is recorded.

REFERENCES:
patent: 4031640 (1977-06-01), Hanna
patent: 4171864 (1979-10-01), Jung et al.
patent: 4175775 (1979-11-01), Kruegle
patent: 4222662 (1980-09-01), Kruegle
patent: 4252427 (1981-02-01), Brecht
patent: 4443027 (1984-04-01), McNeely
patent: 4590366 (1986-05-01), Rothfell
patent: 4692394 (1987-09-01), Drexler

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