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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9/00
Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
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F21S9/02
the power supply being a battery or accumulator
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