Fire-extinguishing systems; Fire-extinguishing apparatus; Computer hardware and recorded software systems for fire detection and suppression; Fire suppression systems and component parts thereof, for use in helicopter landing decks, comprised of charged bottles, charge gauges, mounting bases and straps, pull cables, nozzles, fittings, tubing, and stickers; Supervisory switches for fire suppression systems; Fire detection devices; Fire and smoke detectors; Fire alarm and emergency evacuation devices, namely, fire alarm control panels, smoke detectors, heat detectors, alarm pull stations, audible and visible notification appliances, strobes, sirens, bells, horns, and speakers; Fire extinguishers; Fire alarms; Fire sprinklers; Apparatus for detecting fire; Sprinkler heads for fire sprinklers; Fire fighting equipment, namely, fire fighting monitors that spray foam or liquids on fires; Downloadable computer operating software; Recorded computer operating software; Downloadable software, capable of functioning offline, for fire detection and suppression; Recorded software, capable of functioning offline, for fire detection and suppression; Smoke alarms