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http://www.google.com.au/patents/US3204354?utm_source=gb-gplus-share
Patent US3204354 - TAMPERFROOF, ENCAPSULATED IDENTIFICATION CARD
TAMPERFROOF, ENCAPSULATED IDENTIFICATION CARD
Louis Berger et al
Overview
Abstract
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Description
Claims
Patent number
: 3204354
Filing date
: 11 Sep 1963
Issue date
: 7 Sep 1965
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