Optical lanterns; signal lanterns, namely, signalling lights; warning lamps being luminous beacons; warning lights being flashing beacons; flashing safety lights; flashing safety lights being luminous signals; computer hardware for routing audio, video, and digital signals; naval signalling apparatus, namely signalling buoys; luminous safety signals; luminous safety beacons; signalling lamps; safety equipment, namely, beacon lights; luminous beacons for safety or warning purposes; beacons, lu...