Combined security access gate and controlling card reader theref

Details Combined security access gate and controlling card reader theref Combined security access gate and controlling card reader theref

1976-06-23

1978-07-18

Lucas, Susan J.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D25 50, D1402, D2599

Patent

active

D02485559

REFERENCES:
patent: 3221304 (1965-11-01), Enikeieff et al.
patent: 3368305 (1968-02-01), Piekarski

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