Stress-opacifying tamper indicating tape

Printed matter – Having revealable concealed information – fraud preventer or... – Identifier

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283 94, 283 95, 283114, 428187, 428195, 428203, 428204, 428343, 428916, 428918, 428 40, B65D 4100

Patent

active

045575053

ABSTRACT:
A tape product which bears a visible message which is changed when the tape is subjected to stress is adapted for use on containers and packages to indicate that the same container or package has been opened or the closure has been tampered with in an attempt to open the same. The message change is obtained by the tape becoming opaque to obliterate one message and provide a contrasting background for a different message.

REFERENCES:
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patent: 2300787 (1942-11-01), Ingliss
patent: 3022541 (1962-02-01), Passley et al.
patent: 3468744 (1969-09-01), Reinhart
patent: 3734808 (1973-04-01), Anderson
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patent: 3935960 (1976-02-01), Cornell
patent: 3974311 (1976-08-01), Cherrin
patent: 4184701 (1980-01-01), Franklin
patent: 4209126 (1980-06-01), Elias
patent: 4307899 (1981-12-01), Hoppe
patent: 4343851 (1982-08-01), Sheptak
patent: 4429015 (1984-01-01), Sheptak

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