Patent classifications
G
PHYSICS
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G01
MEASURING; TESTING
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G01N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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2201/00
Features of devices classified in G01N21/00
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G01N2201/12
Circuits of general importance; Signal processing
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G01N2201/127
Calibration; base line adjustment; drift compensation
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G01N2201/12707
Pre-test of apparatus, e.g. dark test, sensor test
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