TREA

using a supplementary light source for emergency lighting

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Industry

  • CPC
  • F21S9/024
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F21Lighting F21SNON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF F21S9/00Lighting devices with a built-in power supply Systems employing lighting devices with a built-in power supply

Current Industry

F21S9/024using a supplementary light source for emergency lighting
Industries