| 335 / | HD | ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS |
| 2 | DF | ELECTROMAGNETICALLY ACTUATED SWITCHES {30} |
| 159 | ![]() | .~ Plural independently operable switches {3} |
| 160 | DF | .~.~> Interlocking {1} |
| 162 | DF | .~.~> With unitary housing, support or flux path |
| 163 | DF | .~.~> With unitary or common magnetic flux source |