High-tech security.
Harvey
C
C
ADT Security Systems, Methuen, MA, USA.
D003363:Cost Control; D008284:Maintenance and Engineering, Hospital / Q000191:economics / Q000458:organization & administration* / Q000592:standards; D016272:Occupational Health; D012637:Security Measures / Q000191:economics / Q000458:organization & administration* / Q000592:standards; D013690:Television; D014481:United States; D014741:Video Recording / Q000191:economics / Q000592:standards