RADIO-FREQUENCY TRANSMITTERS AND RECEIVERS, NAMELY SPREAD SPECTRUM, POINT-TO-POINT AND POINT-TO-MULTIPOINT, AND SINGLE CHANNEL TRANSMITTERS AND RECEIVERS
Electrical and Scientific ApparatusMAINTENANCE OF TELECOMMUNICATION SYSTEMS AND APPARATUS, NAMELY, TELEPHONES, FACSIMILE MACHINES, TELEX MACHINES, DATA PROCESSING AND TRANSMISSION UNITS, ISDN MODEMS, RADIO FREQUENCY TRANSMITTERS AND RECEIVERS
Building Construction and RepairPROVIDING TELECOMMUNICATION SERVICES, NAMELY, TELEPHONE, FACSIMILE, TELEX, DATA AND ISDN TRANSMISSION SERVICES
Telecommunications