Vandal-resistant security view port

Details Vandal-resistant security view port Vandal-resistant security view port

1984-03-16

1986-02-25

Friedman, Carl D.

Static structures (e.g., buildings)

Jail-type structure

52204, 49171, E04H 308

Patent

active

045719012

ABSTRACT:
A vandal-resistant security view port for use in prison cells and the like. The view port permits observation into a cell or room and is mounted on a frame which can be attached over an opening in a wall of the cell. The view port has a transparent pane and a grate and may be open or covered by a hinged door operable from the back side of the wall.

REFERENCES:
patent: 1747156 (1930-02-01), Breslow
patent: 2771971 (1956-11-01), Goldberg
patent: 3173180 (1965-03-01), Dean
patent: 3203052 (1965-08-01), Curtis, Jr.

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