ClassID:

165797

G01J1/0444 - CPC Classification

Classification description:

Photometry, e.g. photographic exposure meter; Details; Optical or mechanical part supplementary adjustable parts; Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using means for replacing an element by another, e.g. for replacing a filter or grating

Recent Application in this class: