CPC Subgroup
G01J 3/461 Full Title
Spectrometry; Spectrophotometry; Monochromators; Measuring colours > Measurement of colour; Colour measuring devices, e.g. colorimeters (measuring colour temperature G01J5/60)
G01J 3/461 Spectrometry; Spectrophotometry; Monochromators; Measuring colours > Measurement of colour; Colour measuring devices, e.g. colorimeters (measuring colour temperature G01J5/60)