TREA

Combining sunlight and electric light sources for indoor illumination

Follow

Industry

  • CPC
  • F21S19/005
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F21Lighting F21SNON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF F21S19/00Lighting devices or systems employing combinations of electric and non-electric light sources Replacing or exchanging electric light sources with non-electric light sources or vice-versa

Current Industry

F21S19/005Combining sunlight and electric light sources for indoor illumination
Industries