| Class |
Group |
Description |
|
977
|
040
|
Antennas & Accessories (Radio Only) -
|
|
977
|
080
|
Crystals, Frequency Generating - Main-
|
|
977
|
100
|
Facsimile Equipment - Maintenance
|
|
977
|
120
|
Message Switching Systems (Radio & Tele-
|
|
977
|
160
|
Microwave (Communications) Equipment,
|
|
977
|
180
|
Data Communications Equipment - Mainten-
|
|
977
|
230
|
Emergency Calling Systems - Maintenance
|
|
977
|
240
|
Paging & Calling Systems - Maintenance
|
|
977
|
260
|
Radar & Navigational Equipment,
|
|
977
|
270
|
Radar, Speed Monitoring - Maintenance
|
|
977
|
280
|
Radios, Aircraft Communications - Main-
|
|
977
|
320
|
Radios, Auto - Maintenance Service.
|
|
977
|
360
|
Radios, Citizens' Band, Receivers,
|
|
977
|
400
|
Radios, Home - Maintenance Service.
|
|
977
|
440
|
Radios, Marine & Navigational Equipment
|
|
977
|
520
|
Radios, Two-Way - Maintenance Service.
|
|
977
|
610
|
Processing & Control Equipment, Audio -
|
|
977
|
620
|
Recorders, Tape: Communication Systems,
|
|
977
|
640
|
Telephone Equipment - Maintenance
|
|
977
|
680
|
Teletypewriters - Maintenance Service.
|
|
977
|
720
|
Towers, Antenna, Metal - Maintenance
|
|
977
|
800
|
Towers, Radio: Painting & Inspecting -
|
|
977
|
840
|
Transmitters, Am/Fm, Broadcast - Main-
|
|
977
|
880
|
Uhf & Vhf Equipment (Not Communications)
|
|
977
|
920
|
Wildlife Tracking Equipment - Mainten-
|
