Antitheft label

Details Antitheft label Antitheft label

1996-11-08

1999-07-13

Han, Frances

Printed matter

Having revealable concealed information, fraud preventer or...

Identifier

428611, 428928, 340551, 340572, G08B 1324

Patent

active

059215836

ABSTRACT:
An antitheft label which generates a high Barkhausen inversion when subjected to a magnetic field. The antitheft label comprises a laminate of upper and lower tape bases each having an inner laminated surface and an outer surface, a first adhesive layer disposed on the inner surface of the upper tape base, a second adhesive layer disposed on the inner surface of said lower tape base, a pulse-generating magnetic wire and first and second magnetic thin ribbons disposed on opposite ends of the magnetic wire. The magnetic wire and magnetic thin ribbons are arranged between the upper and lower tape bases.

REFERENCES:
patent: 3631442 (1971-12-01), Fearon
patent: 4660025 (1987-04-01), Humphrey
patent: 4686516 (1987-08-01), Humphrey
patent: 4797658 (1989-01-01), Humphrey
patent: 5519379 (1996-05-01), Ho et al.
patent: 5560970 (1996-10-01), Ludebuhl
patent: 5605768 (1997-02-01), Furukawa et al.
patent: 5650236 (1997-07-01), Hirano et al.

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