Installation and maintenance of fire alarm, detection and suppression systems

Fire suppression systems and component parts thereof, composed primarily of electric control panels, sensors for detecting heat and fire, and modules with sensors to detect heat and fire, modules to activate alarms and fire suppression apparatus; components of fire extinguishing apparatus, namely, piping for fire suppression liquid and gas distribution, couplings, valves and discharge nozzles

Computer mice; input devices for home video games; input devices for computers; computer joysticks