G - Physics – 07 – D
Patent
G - Physics
07
D
G07D 7/00 (2006.01)
Patent
CA 2221254
Apparatus for detecting counterfeit documents comprises a gate (10) defining a path (66) through which documents can be passed to engage a nib (34) which transfers a liquid from a reservoir (12) to a document and which reacts with the document or its printing to indicate a counterfeit document; to limit the loss of liquid a seal (56) seals the nib (34) from the atmosphere when a document is not in the path (66).
Critchley David John
Na
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