37 Servicing, maintenance and repair of signaling apparatus, equipment and instruments for military or law enforcement use; servicing, maintenance and repair of apparatus, optical equipment for civil and military applications, sighting and aiming instruments and apparatus for use with firearms, sighting telescopes, sighting telescopes for firearms, binoculars, glasses (optics), safety goggles for protecting the eyes, protective helmets for military or law enforcement use, gas masks, portable bullet-proof shields, bullet-proof clothing and vests; servicing, maintenance and repair of vehicles and boats for military use, drones for military use; servicing, maintenance and repair of firearms and ammunition for military or law enforcement use, ammunition for firearms, artillery ammunition and mortars, projectiles, rockets (projectiles), rocket launchers, rockets, ammunition launching mounts, amunition launchers, explosive fog signals, explosive mist signals, ballistic missiles, fog signal rockets, grenades, smoke grenade, explosives, pyrotechnic systems for military purposes, pyrotechnic systems for law enforcement, pyrotechnics for decoy of missiles, sighting devices for firearms other than telescopic sights