Latch-type fastening, e.g. with rotary action

Full Title

Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages (of light sources or light holders F21V19/00) > characterised by specific fastening means or way of fastening (F21V17/02 - F21V17/08 take precedence) > Latch-type fastening, e.g. with rotary action