37 Security and surveillance services, namely, installation, maintenance and repair of security and surveillance systems and theft prevention devices, access control and alarm monitoring systems, namely, cameras, electronic key access, HMI (human machine interface), motion detectors, and eye laser scanners; installation, maintenance and repair of closed circuit TV systems for security and surveillance, namely, cameras, video cameras, switches, monitors, microphones, and recorders; installation, maintenance and repair of electric and electronic apparatus for the transmission of information, data and images; installation, maintenance and repair of electric and electronic apparatus for computer and control engineering, namely, video monitoring systems having signal pickup, signal recording and signal processing, as well as a central control unit; installation, maintenance and repair apparatus for recording and reproducing data, sound and images, namely, video apparatus, monitors, video recorders; installation, maintenance and repair of cameras for both moving images and still images, namely, video cameras, electronic cameras, digital cameras, movie cameras and photographic cameras; installation, maintenance and repair of theft, vandalism, fire, explosion, and chemical disaster alarm devices for edifices and object protection; installation, maintenance and repair of electric and electronic locking devices for edifices, compounds, and storage facilities, namely, transponders, devices for acquiring and processing biometric data, locking cards and chip cards. installation, maintenance and repair of computers, personal computers, printers, scanners, monitors, hard disks, drives for data carriers, namely, CD drives, CD printers, computer disk drives, computer cards, namely, graphics cards, interface cards, memory cards, and modems; all of the foregoing services excluding installation, maintenance and repair of computer software