| 310 / | HD | ELECTRICAL GENERATOR OR MOTOR STRUCTURE |
|
| 10 | DF | DYNAMOELECTRIC {5} |
| 40 R | DF | .~ Rotary {28} |
| 179 | DF | .~.~ Windings and core structure {7} |
| 195 |  | .~.~.~ Armature or primary {9} |
| 196 | DF | .~.~.~.~> Corona-prevention |
| 197 | DF | .~.~.~.~> With short-circuited winding or conductor |
| 198 | DF | .~.~.~.~> Plural windings {1} |
| 200 | DF | .~.~.~.~> Variable length or tapped windings |
| 201 | DF | .~.~.~.~> Bar windings |
| 202 | DF | .~.~.~.~> Open windings |
| 203 | DF | .~.~.~.~> Closed windings {4} |
| 208 | DF | .~.~.~.~> Coils |
| 209 | DF | .~.~.~.~> Adjustable magnetic structure |