379 / | HD | TELEPHONIC COMMUNICATIONS |
FOR 101 | HAVING ELECTROMAGNETIC LINK FOR SPEECH OR PAGING SIGNAL (E.G., LIGHT WAVE LINK) (379/56) {2} | |
FOR 102 | DF | .~> Control of selectively responsive paging arrangement over telephone line (379/57) |
FOR 103 | DF | .~> Radio telephone system or instrument (379/58) {3} |