9
electrical apparatus and instruments, namely, remote control devices, intercoms, video cameras, truck scales, printers, bar code readers, transponders, optical character readers, electric traffic message signs and audio message repeaters, host-controlled intercoms, gate arms, and traffic lights all used in connection with a system which controls and monitors movement of freight container traffic through gates and lights
37
installation of data, audio and video equipment and electrical and computer systems as part of a system which controls and monitors movement of freight container traffic through gates and lights
40
custom manufacture of computers, electronic devices and electrical systems as part of a system which controls and monitors movement of freight container traffic through gates and lights
42
design engineering and computer design for the purpose of integrating data, video, and audio equipment into a system which controls and monitors movement of freight container traffic through gates and lights
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