B - Operations – Transporting – 42 – D
Patent
B - Operations, Transporting
42
D
283/20
B42D 15/00 (2006.01) D21H 23/00 (2006.01)
Patent
CA 1279880
ABSTRACT OF THE DISCLOSURE Security devices in the form of metallized plastic films are incorporated within a security paper such a banknotes and other valuable documents during the papermaking process for viewing solely by means of transmitted light. The devices comprise printing of extreme fine line clarity and high opacity such that legibility is possible by means of transmitted light while remaining completely indiscernible under reflected light.
530450
Bereskin & Parr
Crane & Company Inc.
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