Micrometers; Microphones; Microscopes; Scales; Telescopes; Baby monitors; Battery charge devices; Bicycle speedometers; Electronic access control systems for interlocking doors; Fire alarms; Gas masks; Protective helmets; Protective spectacles; Slide calipers; Stands adapted for laptops; Surveyors' levels; Telescopic sights for artillery; Toner cartridges, unfilled, for printers and photocopiers; Virtual reality headsets; Workmen's protective face shields