SEE OR SEARCH CLASS: 335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets, 177 for electromagnetically operated switches having plural operating magnet means and subclass 266 for electromagnets with armature utilizing plural coils or magnets.
(armature; utilizing; plural coils or magnets) (electromagnetically operated switches; having; plural operating magnet)
armature electromagnetically operated switches
utilizing having
plural coils or magnets
plural operating magnet