5830 - INTERCOMMUNICATION AND PUBLIC ADDRESS SYSTEMS, EXCEPT AIRBORNE
5831 - INTERCOMMUNICATION AND PUBLIC ADDRESS SYSTEMS, AIRBORNE
5836 - VIDEO RECORDING AND REPRODUCING EQUIPMENT
5965 - HEADSETS, HANDSETS, MICROPHONES AND SPEAKERS
AS45 - MARINE TRANSPORTATION (OPERATIONAL)
D300 - NO DESCRIPTION AVAILABLE
H258 - EQUIPMENT AND MATERIALS TESTING- COMMUNICATION, DETECTION, AND COHERENT RADIATION EQUIPMENT
L058 - TECHNICAL REPRESENTATIVE- COMMUNICATION, DETECTION, AND COHERENT RADIATION EQUIPMENT
R426 - SUPPORT- PROFESSIONAL: COMMUNICATIONS
W017 - LEASE OR RENTAL OF EQUIPMENT- AIRCRAFT LAUNCHING, LANDING, AND GROUND HANDLING EQUIPMENT