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CPC Subgroup
G01J 3/40

Measuring the intensity of spectral lines by determining density of a photograph of the spectrum; Spectrography (G01J3/42, G01J3/44 take precedence)

Full Title

Spectrometry; Spectrophotometry; Monochromators; Measuring colours > Investigating the spectrum (using colour filters G01J3/51) > Measuring the intensity of spectral lines by determining density of a photograph of the spectrum; Spectrography (G01J3/42, G01J3/44 take precedence)