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CPC
F21V29/503
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Parent Industries
F
MECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS
F21
Lighting
F21V
DETAILS OF LIGHTING DEVICES, OF GENERAL APPLICATION
F21V29/00
Protecting lighting devices from thermal damage Cooling or heating arrangements specially adapted for lighting devices or systems
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F21V29/503
of light sources
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