Protected document and method of making same

Details Protected document and method of making same Protected document and method of making same

B - Operations, Transporting

41

M

283/20

B41M 3/14 (2006.01) G03C 5/08 (2006.01) G07D 7/20 (2006.01)

Patent

CA 1118009

Abstract of the Invention Disclosed is a protected document such as a negotiable instrument, a title instrument, identification document or other documents which should be kept secure from illegal copying by color copiers. The method of making the document comprising preprinting a "VOID" or other warning or cancellation phrase pattern in half tone or multitone on the document and camouflaging this pattern is also disclosed.

301902

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