9 RADIO-FREQUENCY TRANSMITTERS AND RECEIVERS, NAMELY SPREAD SPECTRUM, POINT-TO-POINT AND POINT-TO-MULTIPOINT, AND SINGLE CHANNEL TRANSMITTERS AND RECEIVERS
37 MAINTENANCE OF TELECOMMUNICATION SYSTEMS AND APPARATUS, NAMELY, TELEPHONES, FACSIMILE MACHINES, TELEX MACHINES, DATA PROCESSING AND TRANSMISSION UNITS, ISDN MODEMS, RADIO FREQUENCY TRANSMITTERS AND RECEIVERS
38 PROVIDING TELECOMMUNICATION SERVICES, NAMELY, TELEPHONE, FACSIMILE, TELEX, DATA AND ISDN TRANSMISSION SERVICES