335 / | HD | ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS |
2 | DF | ELECTROMAGNETICALLY ACTUATED SWITCHES {30} |
106 | DF | .~ Multiple contact type {5} |
107 | DF | .~.~ Contacts-selectively, sequentially, alternately, or intermittently actuated {3} |
121 | DF | .~.~.~ Contact-actuation means {3} |
122 | .~.~.~.~ With rotary or compound motion device (e.g., rack and pinion) {1} | |
123 | DF | .~.~.~.~.~> Pawl and ratchet |