075-07502 ALARM SYSTEMS, VISUAL AND AUDIO, ELECTRICALLY AND MECHANICALLY OPERATED DOORS | 838-83834 Communication security systems | C-00420 ELECTRICAL | C-00450 ENGINEERING | C-00730 INSTALLATION OF ELECTRONIC COMMUNICATION SYSTEMS | C-01440 SECURITY/INTRUSION ALARMS | C-01760 TELECOMMUNICATIONS | C-02350 SECURITY SYSTEMS
205-20546 IMAGING SYSTEMS, MICROCOMPUTER, INCLUDING DIGITAL IMAGING NETWORK (DIN), TECHNOLOGY, AND DIGITAL IMAGING COMMUNICATIONS IN MEDICINE (DICOM), ENVIRONMENTALLY CERTIFIED PRODUCTS