76275813
Jun 21, 2001
Mar 11, 2003
Protective clothing for aircraftmen and spacemen; pressure suits, namely suits and parts of pressure suits which protect against the effects of considerable acceleration on the human body; protective headgear, namely helmets for aircraftmen and spacemen, protective helmets with overpressure installations; hearing protection, namely, protective ear muffs not for medical use
Electrical and Scientific ApparatusMaintenance and repair of articles of protective clothing and pressure suits as well as of security systems, inclusive of their components, in aircraft
Building Construction and Repair