CPC Subgroup
G07D 7/02 Testing electrical properties of the materials thereof (G07D7/01 takes 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 electrical properties of the materials thereof (G07D7/01 takes precedence)
2 direct subcodes
Child Classifications
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- G07D 7/023 Measuring conductivity by direct contact
- G07D 7/026 using capacitive sensors