9 House mark for a line of all-optical cross connect switches, opto-electronic cross connect switches, optical switching sub-systems and components, optical transmission equipment, and fiber optic connectors
35 Management of Telecommunications Systems and Telecommunications Networks
37 Construction and Maintenance of Telecommunications Systems and Telecommunications Networks
42 Design and development of optical cross connect switches for others, design and maintenance of software and hardware programs to manage, operate and maintain telecommunication systems and telecommunication networks