Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F21
LIGHTING
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F21S
NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
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41/00
Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
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F21S41/30
characterised by reflectors
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F21S41/33
Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
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F21S41/331
the reflector consisting of complete annular areas
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