CPC Subgroup Additional Only
G01N 2201/121 Correction signals
Full Title
Features of devices classified in G01N21/00 > Circuits of general importance; Signal processing > Correction signals
5 direct subcodes
Child Classifications
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- G01N 2201/1211 for temperature
- G01N 2201/1214 for humidity
- G01N 2201/1215 for interfering gases
- G01N 2201/1217 for index of solution, carrying fluids
- G01N 2201/1218 for pressure variations