F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21
LIGHTING
F21
LIGHTING
F21S
NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
F21S
NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
F21S9/00
Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
F21S9/00
Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
F21S9/02
the power supply being a battery or accumulator
F21S9/02
the power supply being a battery or accumulator