Light tracing system for polished gemstones consisting of a light tracing device, computer hardware, and software incorporating algorithms sold as a unit for calculating the brightness, fire, and scintillation in gemstones

Fire-extinguishing systems; fire extinguishers; fire extinguishing apparatus for automobiles; fire hose nozzles; fire sprinklers; sprinkler systems for fire protection; thermally activated manually resettable fire safety valves; fire extinguishers and parts and fittings therefore sold as a unit; and temperature sensors for fire detectors and parts and fittings therefore sold as a unit

Fire extinguishing equipment and apparatuses and parts and fittings therefor; temperature sensing devices and parts and fittings therefore

fire extinguishing apparatus

Fire-extinguishing systems; fire extinguishers; fire extinguishing apparatus for automobiles; fire hose nozzles; fire sprinklers; sprinkler systems for fire protection; thermally activated manually resettable fire safety valves; fire extinguishers and parts and fittings therefore sold as a unit; temperature sensors for fire detectors and parts and fittings therefore sold as a unit