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| 3220 | Airborne radio communications equipment, manufacturing | |
| 3220 | Aircraft radio equipment repair services | |
| 3220 | Amplifiers (e.g., RF power, I-F), broadcast and studio equipment, manufacturing | |
| 3220 | Antennas, transmitting and communications, manufacturing | |
| 3220 | Broadcast equipment (including studio), for radio and television, manufacturing | |
| 3220 | Cable television transmission and receiving equipment, manufacturing | |
| 3220 | Cameras, television, manufacturing | |
| 3220 | Carrier equipment (i.e., analog, digital), telephone, manufacturing | |
| 3220 | Carrier equipment, cellular communications (i.e., analog, digital), manufacturing | |
| 3220 | CB (citizens' band) radios, manufacturing | |
| 3220 | Cellular telephones, manufacturing | |
| 3220 | Central office and switching equipment, telephone, manufacturing | |
| 3220 | Citizens' band (CB) radios, manufacturing | |
| 3220 | Communications equipment, mobile and microwave, manufacturing | |
| 3220 | Communications headgear, telephone, manufacturing | |
| 3220 | Cordless telephones (except cellular), manufacturing | |
| 3220 | Data communications equipment (e.g., bridges, gateways, routers), manufacturing | |
| 3220 | Earth station communications equipment, manufacturing | |
| 3220 | Facsimile equipment, standalone, manufacturing | |
| 3220 | Global positioning service (GPS) equipment, manufacturing | |
| 3220 | GPS (global positioning system) equipment, manufacturing | |
| 3220 | Intercom systems and equipment, manufacturing | |
| 3220 | Intercommunication equipment, commercial, repair | |
| 3220 | Keysets, telephone, manufacturing | |
| 3220 | Local area network (LAN) communication equipment (e.g., bridges, gateways, routers), manufacturing | |
| 3220 | Marine radio communications equipment, manufacturing | |
| 3220 | Microwave communications equipment, manufacturing | |
| 3220 | Microwave transmitting equipment (except telephone and telegraph), manufacturing | |
| 3220 | Microwave transmitting equipment (telephone and telegraph), manufacturing | |
| 3220 | Mobile communications equipment, manufacturing | |
| 3220 | Modems, carrier equipment, manufacturing | |
| 3220 | Multiplex equipment, telephone, manufacturing | |
| 3220 | PBX (private branch exchange) equipment, manufacturing | |
| 3220 | Private branch exchange (PBX) equipment, manufacturing | |
| 3220 | Public address system repair | |
| 3220 | Radio broadcasting equipment, manufacturing | |
| 3220 | Radio transmitting antennas and ground equipment, manufacturing | |
| 3220 | Receiver-transmitter units (i.e., transceivers), manufacturing | |
| 3220 | Repeater and transceiver equipment, carrier line, manufacturing | |
| 3220 | Studio equipment, radio and television broadcasting, manufacturing | |
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