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CPC Subgroup
G07D 7/20

Testing patterns thereon (G07D7/004, G07D7/005 take precedence)

Full Title

Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency > Testing patterns thereon (G07D7/004, G07D7/005 take precedence)

4 direct subcodes

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