CPC Subgroup
F21V 1/17 the material comprising photoluminescent substances
Full Title
Shades for light sources > Covers for frames; Frameless shades > characterised by the material > the material comprising photoluminescent substances
F21V 1/17 Shades for light sources > Covers for frames; Frameless shades > characterised by the material > the material comprising photoluminescent substances