Security apparatus

Details Security apparatus Security apparatus

1989-03-21

1990-04-10

Kundrat, Andrew V.

Fences

Electric

256 8, 340541, A01K 300

Patent

active

049153595

ABSTRACT:
Security apparatus which has an outer concertina coil of barbed tape with an inner coiled electrical conductor, which may also be made from a concertina coil of barbed tape, positioned within the outer concertina coil and supported therefrom by means of insulators which prevent the conductor from coming in to electrical contact with the outer concertina coil.

REFERENCES:
patent: 4525701 (1985-06-01), Leih
patent: 4571578 (1986-02-01), Karas
patent: 4818972 (1989-04-01), Mainiero

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