| 361 / | HD | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
|
| 271 | DF | ELECTROSTATIC CAPACITORS {4} |
| 277 | DF | .~ Variable {4} |
| 287 | DF | .~.~ Mechanically variable {5} |
| 292 | DF | .~.~.~ By varying effective area of electrode {6} |
| 298.1 | DF | .~.~.~.~ Rotary plates {5} |
| 299.1 |  | .~.~.~.~.~ Plural capacitors {4} |
| 299.2 | DF | .~.~.~.~.~.~> Details of electrical connecting means (e.g., terminal or lead) |
| 299.3 | DF | .~.~.~.~.~.~> Details of mounting means |
| 299.4 | DF | .~.~.~.~.~.~> With adjustment means |
| 299.5 | DF | .~.~.~.~.~.~> Details of insulator feature |