(under subclass 34) Subject matter in which means are provided for connecting the armature or primary circuits of one or more electric motors in series circuit relationship with the armature or primary circuits of one or more other electric motors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
49+, for motor systems having plural motors electrically connected in cascade or in tandem (that is, where the electrical output of one constitutes the electrical input to another).
111, for plural motor systems in which the armature or primary circuits of a plurality of motors are connected both in series and in parallel.
SEE OR SEARCH CLASS
315, Electric Lamp and Discharge Devices: Systems, 185+, and the Search Notes thereto, for plural series-connected-electric lamp and space discharge devices.
320, Electricity: Battery or Capacitor Charging or Discharging, appropriate subclasses for series or parallel connection of batteries in a system for charging or discharging a battery, especially