Protective eyewear against accidents; protective jacket, pants and gloves against accidents for welders; clothing, helmets, hoods and equipment for protection against accidents, irradiation and fire; protective coverups, jackets, trousers, gloves, hoods, helmets, masks, boots and glasses for welding; protective helmets, hoods and visors; optical goods, spectacles, spectacle lenses, optical glass; smoke hoods with filter against toxic gases and particles; thermally insulated clothing especially designed for protection against accidents, injuries, radiation and fire; protection devices for personal use against accidents; protective breathing masks and apparatus for industrial use, filters for respiratory masks, breathing apparatus, except for artificial respiration; measuring, signalling apparatus and checking (supervision) instruments; air regulators; detectors, sensors; alarms; digital display devices; level indicators; safety markers; set squares [measuring], square rulers for measuring.;