| 310 / | HD | ELECTRICAL GENERATOR OR MOTOR STRUCTURE |
| 10 | DF | DYNAMOELECTRIC {5} |
| 40 R | DF | .~ Rotary {28} |
| 52 | ![]() | .~.~ Cooling or fluid contact {6} |
| 53 | DF | .~.~.~> With control means |
| 54 | DF | .~.~.~> Liquid coolant |
| 55 | DF | .~.~.~> Nonatmospheric gas |
| 56 | DF | .~.~.~> With gas purification or treating |
| 57 | DF | .~.~.~> Intermediate confined coolant |
| 58 | DF | .~.~.~> Circulation {3} |