315 / | HD | ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS |
291 | DF | CURRENT AND/OR VOLTAGE REGULATION {7} |
294 | .~ Plural load device regulation {4} | |
295 | DF | .~.~> Regulator selectively connectable to plural circuits |
296 | DF | .~.~> Inverse control of load devices |
297 | DF | .~.~> Automatic regulation |
298 | DF | .~.~> Mechanically connected regulators |