Printed matter – Having revealable concealed information – fraud preventer or... – Utilizing electromagnetic radiation
Patent
1996-11-21
1998-09-08
Han, Frances
Printed matter
Having revealable concealed information, fraud preventer or...
Utilizing electromagnetic radiation
283 82, 283 83, 283901, 428915, B42D 1502
Patent
active
058035036
ABSTRACT:
The invention relates to a security document, in particular a bank note, identity card or the like, having a security element which is provided with characters, patterns, etc., visually readable at least in transmitted light and which is electrically conductive and bears additional substances for machine testing, and to a method for producing such a security element. The security element preferably consists of a transparent film strip that bears negative writing readily capable of visual checking and is additionally provided with electrically conductive and magnetic substances.
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Boehm Michael
Burchard Theodor
Kaule Wittich
Schneider Walter
Gao Gesellschaft fur Automation und Organisation MGH
Han Frances
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