| 335 / | HD | ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS |
| 2 | DF | ELECTROMAGNETICALLY ACTUATED SWITCHES {30} |
| 185 | DF | .~ Contact-actuating means {7} |
| 189 | ![]() | .~.~ Mechanical linkage {2} |
| 190 | DF | .~.~.~> Including cam, roller or eccentric means |
| 191 | DF | .~.~.~> Compound motion device (e.g., toggle) |