TREA

the elements having apertures, ducts or channels

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Industry

  • CPC
  • F21V29/83
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F21Lighting F21VDETAILS OF LIGHTING DEVICES, OF GENERAL APPLICATION F21V29/00Protecting lighting devices from thermal damage Cooling or heating arrangements specially adapted for lighting devices or systems

Current Industry

F21V29/83the elements having apertures, ducts or channels
Industries