| 379 / | HD | TELEPHONIC COMMUNICATIONS |
| FOR 101 | DF | HAVING ELECTROMAGNETIC LINK FOR SPEECH OR PAGING SIGNAL (E.G., LIGHT WAVE LINK) (379/56) {2} |
| FOR 103 | ![]() | .~ Radio telephone system or instrument (379/58) {3} |
| FOR 104 | DF | .~.~> Zoned or cellular system (379/59) {1} |
| FOR 106 | DF | .~.~> Including cordless extension set (i.e., having single subscriber line access) (379/61) {1} |
| FOR 108 | DF | .~.~> Including supervisory or control signalling (379/63) |