CPC Subgroup Additional Only
G01N 2201/0634 Diffuse illumination
Full Title
Features of devices classified in G01N21/00 > Illumination; Optics > Illuminating optical parts > Diffuse illumination
G01N 2201/0634 Features of devices classified in G01N21/00 > Illumination; Optics > Illuminating optical parts > Diffuse illumination