Card reader for computerized access control system

Details Card reader for computerized access control system Card reader for computerized access control system

1976-06-23

1978-06-20

Lucas, Susan J.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D1402

Patent

active

D02482339

REFERENCES:
patent: D234142 (1975-01-01), Snow et al.
patent: D234699 (1975-04-01), Conway et al.
I.B.M. Data Processor for Managers of I.B.M. Installations, Dec. 1957, p. 8, card reader.

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