METHOD FOR MANUFACTURE OF SECURITIES, METALLOGRAPHIC PRINTING FORM FOR MANUFACTURE OF SECURITIES, AND SECURITIES
FIELD: manufacture of securities. ^ SUBSTANCE: method involves providing pattern comprising combination of ink layer protrusions and slots therebetween, with width of ink layer protrusions making at least 0.5 mm. ^ EFFECT: increased extent of protection of securities from counterfeit. ^ 17 cl, 4 dwg
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Format: | Patent |
Sprache: | eng ; rus |
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Zusammenfassung: | FIELD: manufacture of securities. ^ SUBSTANCE: method involves providing pattern comprising combination of ink layer protrusions and slots therebetween, with width of ink layer protrusions making at least 0.5 mm. ^ EFFECT: increased extent of protection of securities from counterfeit. ^ 17 cl, 4 dwg |
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