Method and apparatus for controlling the passage of persons and

Details Method and apparatus for controlling the passage of persons and Method and apparatus for controlling the passage of persons and

1973-05-25

1977-02-01

Pitts, Harold I.

Communications: electrical

Digital comparator systems

340149R, 340274C, G06K 300

Patent

active

040064590

ABSTRACT:
A security method for controlling the passage of persons and objects between two areas, this method employs a controlled space. Prior to admitting, during the presence and subsequent to exiting of a person to this space, the contents of the space are monitored and examined.

REFERENCES:
patent: 2914746 (1959-11-01), James
patent: 3564132 (1971-02-01), Baker

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