SIC 3669 covers makers of traffic control equipment
NAICS Code 334290 covers makers of traffic control equipment
SIC 3663 covers makers of fiber optics equipment
SIC 3663 covers makers of light communications equipment
SIC 3663 covers makers of cable television equipment
SIC 3663 covers makers of closed-circuit television equipment
SIC 3663 covers makers of studio audio and video equipment
SIC 3663 covers makers of transceivers
SIC 3663 covers makers of transmitters
SIC 3663 covers makers of communication antennas
SIC 3663 covers makers of RF power amplifiers
SIC 3663 covers makers of satellite communications systems
SIC 3669 covers makers of railroad signaling devices