379 / | HD | TELEPHONIC COMMUNICATIONS |
419 | DF | TERMINAL {4} |
422 | DF | .~ Switch or switch actuator structure {2} |
424 | DF | .~.~ Receiver or handset position responsive (e.g., hookswitch) {3} |
425 | .~.~.~ With mechanism for latching hookswitch or plunger against motion |