318, Electricity: Motive Power Systems, subclass 724 for synchronous motor armature circuits having a plurality of windings or winding portions;
(318, Electricity; subclass; 724 for synchronous motor armature circuits) (synchronous motor armature circuits; having; a plurality of windings or winding portions)
318, Electricity synchronous motor armature circuits
subclass having
724 for synchronous motor armature circuits
a plurality of windings or winding portions