G01J 3/46 Measurement of colour; Colour measuring devices, e.g. colorimeters (measuring colour temperature G01J5/60)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Measurement of colour; Colour measuring devices, e.g. colorimeters
CPC: Measurement of colour; Colour measuring devices, e.g. colorimeters (measuring colour temperature G01J5/60)
Full Title
Full titles differ between systems:
Spectrometry; Spectrophotometry; Monochromators; Measuring colours > Measurement of colour; Colour measuring devices, e.g. colorimeters
Spectrometry; Spectrophotometry; Monochromators; Measuring colours > Measurement of colour; Colour measuring devices, e.g. colorimeters (measuring colour temperature G01J5/60)
CPC subdivides this area 5x more granularly than IPC with 7 additional codes.
7 codes are CPC-only extensions.
Note: 3 CPC extensions are marked as secondary classification only.
Child Classifications
Navigate with arrow keys, Enter to open